- | Use the Search above right | Sort Columns By Clicking The Row Above | | | | | | | | | | | | |
Book | Les Causeries Scientifiques | | Henri De Parville | | | 1862 | | | | | https://gallica.bnf.fr/ark:/12148/bpt6k202698x# | FR | | Singing Flame, Pyrophone, Unverified |
Book | Sound | | John Tyndall | Flame | | 1867 | | Chap 6 | 260-301 | | https://www.gutenberg.org/files/54969/54969-h/54969-h.htm | UK | | Musical Flames |
Book | The Cyclopaedia of Electrical Engineering | Gebbib Publishing Co. | M. Slingo, Arthur Brooker, John Perry | Thermo | | 1895 | | Vol 2 | 785-793 | | https://archive.org/details/cyclopdiaelectr00dibngoog | | | Thermophone, electrostatic |
Book | The Electric Arc | Cambridge University Press | Hertha Ayrton | Arc | | 1902 | | | | | https://archive.org/details/electricarc00ayrtrich | UK | | Earliest studies on the noise from arcs key |
Book | Conduction of Electricity Through Gases | | J. J. Thomson | Arc Flame | | 1903 | | Chap 9, 13, 14 | 417, 430-431 | | https://archive.org/details/conductionofele00thomuoft | UK | | Arc hiss, early arc and flame behaviour |
Book | Dielectric Phenomena in High Voltage Engineering | McGraw Hill | F.W.Peek | | | 1915 | | Chap 5 | | | https://archive.org/details/dielectricpheno00peekgoog | | | Behaviour of corona in detail |
Book | Telephone Apparatus | D. Appleton | George Defrees Shepardson | Arc, Thermo | | 1917 | | | 47-49 | | https://upload.wikimedia.org/wikipedia/commons/7/77/Telephone_apparatus%2C_an_introduction_to_the_development_and_theory_%28IA_telephoneapparat00sheprich%29.pdf | UK | | Section on arc and thermo based phones, good references |
Book | Electroacoustics the analysis of transduction, and its historical background | Cambridge | Hunt, Frederick V | | | 1954 | | | 5, 41, 49 | | https://archive.org/details/electroacoustics00hunt | | | See home page for quote. A detailed book on acoustics that ignored any massless |
Book | Hi-Fi Loudspeakers and Enclosures | Rider | Abraham Cohen | Plasma | | 1956 | | | 39-42 | | https://www.worldradiohistory.com/BOOKSHELF-ARH/Technology/Rider-Books/Rider-Hi-Fi-Loudspeakers-Cohen-1956.pdf#search=%22ionophone%22 | | | Longer section on Ionophones |
Book | Hi-Fi Annual & Audio handbook | Ziff-Davis | | Ion | | 1958 | Jan | | | | https://www.radiomuseum.org/lf/p/hi-fi-annual-audio-handbook/vol3dat1958-01/ | | | Ionic Cloud Tweeter |
Book | The Practical Hi-Fi Handbook | Odhams P | Gordon J. King | Plasma | | 1959 | Jan | Chap 5 | 106-107 | | https://www.worldradiohistory.com/hd2/IDX-Audio/Audio-Collection-IDX/IDX/The%20Practical%20Hi-Fi%20Handbook%20-%20Gordon%20J.%20King104.pdf | | Plessey | Section about Plessey Ionophone |
Book | Basic Audio | Rider | Norman Crowhurst | Plasma | | 1959 | | | 85 | | https://www.worldradiohistory.com/BOOKSHELF-ARH/Technology/Rider-Books/RIDER-Basic-Audio-Crowhurst-1959-1.pdf#search=%22ionophone%22 | | | Page on basic ionophone |
Book | High Quality Sound Reproduction | Chapman and Hall | James Moir | Plasma | | 1961 | | | 505-507 | | https://www.worldradiohistory.com/BOOKSHELF-ARH/Technology/Technology-Radio/High-Quality-Sound-Reproduction-Moir-1961.pdf#search=%22ionophone%22 | | | Ionophone, pic of Plessey |
Book | Acoustics and Vibrational Physics | Arnold | Stephens Bate | | | 1966 | | | 317 | | https://archive.org/details/acousticvibratio0000rwbs | | | Tombs corona wind key |
Book | Theoretical Acoustics | McGraw Hill | Morse, Philip Mccord | | | 1968 | | Chap 12 | 781-808 | | https://archive.org/details/theoreticalacous0000mors | | | Whole chapter on Plasma Acoustics |
Book | Ionized Gases | Oxford, Clarendon Press | Alfred Von Engel | | | 1969 | | | | | https://archive.org/details/ionizedgases0000vone/page/n9/mode/2up | | | Wide number of pages on aspects of sparks and arcs |
Book | Electroacoustics | Newnes-Butterworth | M. L. Gayford | Plasma | Tweeter | 1970 | | | 208 | | https://archive.org/details/theoreticalacous0000mors | | | Ionophone |
Book | Interaction of electric and hydrodynamic fields | Nauka | Ostroumov G A | Ion | | 1979 | | Chap 5 | 143-170 | | https://www.osti.gov/etdeweb/biblio/6033278 | RU | | Fluid mechanics of plasma |
Book | Industrial Plasma Engineering | | J. Reece Roth | | | 1995 | | Vol1,2 | | | https://archive.org/details/industrialplasma0001roth | | | Overview of plasma, vol 2 also in archive.org |
Book | Firsts in High Fidelity | Audio Amateur Inc, | Stephen Spicer | Plasma | Tweeter | 2000 | Jan | | 245 | | https://firstsinhifi.com/ | | Plessey, Leak | Plessey Ionophone used by Leak |
Book | Loudspeaker Handbook | Springer Science | John Eargle | | | 2003 | | 2nd ed | 398-402 | | https://link.springer.com/book/10.1007/978-1-4757-5678-4 | | | Plasma skin depth |
Book | Lee de Forest King of Radio Television and Film | Springer Science | Mike Adams | Arc | | 2012 | | | 34,35,196,220,221 | | http://duckduckgo.com/Lee de Forest King of Radio Television and Film Springer Science Mike Adams 2012 | | | 1897 Circuit for a speaking flame or talking arc |
Book | Electroacoustics | CRC Press | Mendel Kleiner | | | 2013 | | | 487-489 | | https://annas-archive.org/md5/77f144965b224d11eb2a12d7e462cd91 | | | A very confused mixed description of massless speakers with odd terminology |
Book | The Age of Electroacoustics | MIT Press | Roland Wittje | | | 2016 | | Chap 2.5 | 58-66 | | https://archive.org/details/ageofelectroacou0000witt/page/n5/mode/2up | | | Early audio history with a war angle,excellent chapter |
Book | Newnes Audio and Hi-Fi Engineer's Pocket Book | Newnes | | | | 2016 | | | 170 | | https://www.sciencedirect.com/book/9780750602341/newnes-audio-and-hi-fi-engineers-pocket-book | | | Poor description of corona speaker |
Book | Handbook of Thermal Plasmas | Springer | Maher I. Boulos, Pierre L. Fauchais, Emil Pfender | | | 2016 | | | | | https://dokumen.pub/handbook-of-thermal-plasmas-3030849341-9783030849344.html | | | Detailed descriptions of everything plasma |
Book | Cinema in Flux | Springer | L. Lipton | Plasma | Mic | 2021 | | | 263-267 | | https://link.springer.com/chapter/10.1007/978-1-0716-0951-4_30#citeas | US | | Kathodophone history, Tri-Ergon history |
Commercial | Kathodophone | | Hans Vogt, Josef Engl, Joseph Massolle | Plasma | Mic | 1918 | | | | | http://duckduckgo.com/Kathodophone Hans Vogt, Josef Engl, Joseph Massolle 1918 | DE | Lorenz for Tri-Ergon (1923) | Or Kathodofon - used for earliest film sound recording 1922, 500V 0.25mm gap |
Commercial | Ionophone | | Siegfried Klein | Plasma | Tweeter | 1952 | | | | | http://duckduckgo.com/Ionophone Siegfried Klein 1952 | FR | Audax | A licensed Klein Ionophone |
Commercial | Ionophone Type D15 | | Siegfried Klein | Plasma | Tweeter | 1954 | | | | | http://duckduckgo.com/Ionophone Type D15 Siegfried Klein 1954 | UK | Plessey | A licensed Klein Ionophone |
Commercial | Ionophon Lautsprecher | | Siegfried Klein | Plasma | Tweeter | 1955 | | | | | https://www.radiomuseum.org/r/telefunken_lautsprecher_ionophon.html | DE | Telefunken Deutschland TFK | A licensed Klein Ionophone |
Commercial | Ionophone | | Siegfried Klein | Plasma | Tweeter | 1955 | | | | | http://duckduckgo.com/Ionophone Siegfried Klein 1955 | SE | A.E.G. | A licensed Klein Ionophone |
Commercial | Ionovac | | Siegfried Klein | Plasma | Tweeter | 1957 | | | | | https://www.dukane.com/company/our-history | US | Dukane, Ionavac | Duk-5,10 - 60, Ionavac division,Ionofone (reworked Klein Ionophone) |
Commercial | Ionovac T-3500 | | Siegfried Klein | Plasma | Tweeter | 1958 | | | | | http://duckduckgo.com/Ionovac T-3500 Siegfried Klein 1958 | US | Electro-Voice (electrovoice) | A licensed Dukane Ionovac clone |
Commercial | Ionofane, Ionofone | | Faulkus, Klein | Plasma | Tweeter | 1965 | | | | | http://duckduckgo.com/Ionofane, Ionofone Faulkus, Klein 1965 | UK | Fane Acoustics | A licensed Ionovac clone Fane 601 |
Commercial | P2H | | | Plasma | Tweeter | 1966 | | | | | https://www.worthpoint.com/worthopedia/w-bowers-wilkins-p2h-monitors-fane-251686354 | UK | Bowers & Wilkins | Used a Fane 601 tweeter P2, P2H |
Commercial | Plasmatronic | | Dr. Alan Hill, With Tony Salsich | Plasma | Tweeter | 1972 | | | | | http://hillplasmatronics.com/ | US | Hill | Well known, helium tank, handful made Type 1,Model 1-100-A key |
Commercial | Tecnac Ionofone | | Siegfried Klein | Plasma | Tweeter | 1974 | | | | | https://www.plasmaspeaker.de/unterseite-1.html | DE | Thorolf Hartung Technische Akustik | Later (bad) Klein Ionovac clone |
Commercial | Model-1A, Reference | | Norbert Schafer | Plasma | Tweeter | 1975 | | | | | https://web.archive.org/web/20220328120123/http://www.plasmatweeter.de/phonogen.htm | DE | Phonogen | Used bought in early (audiotrade) Acapella Ion Tweeter, or Ionovac |
Commercial | Corona Type | | Otto Braun (Sold Ionovac In Germany) | Plasma | Tweeter | 1978 | | | | | http://duckduckgo.com/Corona Type Otto Braun (Sold Ionovac In Germany) 1978 | DE | Corona Acoustic | Company 1977-99, now Lansch Audio 314 - 514 |
Commercial | Realon | | Mr Hata | Plasma | Tweeter | 1978 | | | | | http://duckduckgo.com/Realon Mr Hata 1978 | JP | Real Onkyo Co. Ltd. | A late Ionofane (Klein), Refurb Mk3 listed on Amazon Japan 2014 Mk 1,2,3 ,TS-5A, PS-2000 |
Commercial | MP-01, MP-02 | | Siegfried Klein | Plasma | Tweeter | 1979 | | | | | http://duckduckgo.com/MP-01, MP-02 Siegfried Klein 1979 | DE | Magnat | Also in the Transpuls,MP-X-101 - featured on Tomorrows World 1984 key |
Commercial | Digiplasma | | | Plasma | Tweeter | 1981 | | | | | https://www.plasmaspeaker.de/iml.html | SW | IML | PWM tweeter |
Commercial | Plasmasonic | | Henri Bondar, Jean-Claude Fourriere | Ion | Full | 1984 | | | | | http://tmms.co.jp/EFD/Industrial_issues/Plasmasonic.htm | FR | Audio Reference | Headphones, few hundred made - $2000 1 key |
Commercial | Ion TW-1 | | | Plasma | Tweeter | 1998 | | | | | http://www.acapella.de/ | DE | Acapella (ATR) | Current - Was 8,500 euro on its own, now only part of full system TW-1, TW-1S key |
Commercial | Corona Type | | Rudiger Lansche, Otto Braun | Plasma | Tweeter | 1998 | | | | | https://www.lansche-audio.com/products/plasmatweeter/ | SW | Lansche Audio | Current - Took over Corona Acoustic's designs 314 - 514 |
Commercial | A-3000 | | | Plasma | Tweeter | 1999 | | | | | https://osakaya-com.translate.goog/store/items/speaker/287/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp | JP | CSE Inc. | Negative ion tweeter, 15kHz+ super tweeter |
Commercial | Plasmasonic | | | Plasma | Mid/Tweeter | 2007 | | | | | https://www.easternvoltageresearch.com/ | US | Eastern Voltage Research | Current - tesla coil based design for shows and demos |
Commercial | VA, Arc One, EAL | | Boris G. Viger | Plasma | Tweeter | 2012 | | | | | https://web.archive.org/web/20190423175932/http://viger-audio.com/ | RU | Viger Audio, Plasma Voice | Solid state plasma tweeters VA-5pro,VA6, VA7 |
Commercial | Plasma Signature | | Jim Jordan | Plasma | Tweeter | 2016 | | | | | https://www.vaughnloudspeakers.com/products | US | Vaugn Loudspeakers | Current - Recreated Ionovac |
Early History | Corona discharge | | Otto Von Guericke | Ion | | 1672 | | | | | http://duckduckgo.com/Corona discharge Otto Von Guericke 1672 | DE | | First observation of a corona discharge on pointed conductors |
Early History | Electric wind | | Francis Hauksbee | Ion | | 1709 | | | | | http://duckduckgo.com/Electric wind Francis Hauksbee 1709 | UK | | First observation of the electric wind |
Early History | Electric vapour | | Isaac Newton | Ion | | 1717 | | | | | http://duckduckgo.com/Electric vapour Isaac Newton 1717 | UK | | 2nd edition of Opticks notes the electric vapour |
Early History | Brushes of light | | Jean Antoine Nollet | Ion | | 1746 | | | | | http://duckduckgo.com/Brushes of light Jean Antoine Nollet 1746 | FR | | Corona discharge observations |
Early History | Electrical fire | | Benjamin Franklin | Ion | | 1747 | | | | | http://duckduckgo.com/Electrical fire Benjamin Franklin 1747 | US | | Electrical fire observations to Peter Collins |
Early History | The electric fly | | Benjamin Wilson | Ion | | 1750 | | | | | http://duckduckgo.com/The electric fly Benjamin Wilson 1750 | UK | | Blast resembling wind, proven not to exist in vacuum |
Early History | Feel the fire | | Ebenezer Kinnersley | Ion | | 1752 | | | | | http://duckduckgo.com/Feel the fire Ebenezer Kinnersley 1752 | UK | | Feel the fire discharges blow on your hand |
Early History | Not in a vacuum | | Tiberius Cavallo | Ion | | 1777 | | | | | http://duckduckgo.com/Not in a vacuum Tiberius Cavallo 1777 | IT | | Further proving the wind does not exist in vacuum |
Early History | Sound of flame in a tube | | Dr Byron Higgins | Flame | | 1777 | | | | | http://duckduckgo.com/Sound of flame in a tube Dr Byron Higgins 1777 | UK | | Resonant hydrogen flame in a metal pipe |
Early History | Electric wind | | Michael Faraday | Ion | | 1838 | | | | | http://duckduckgo.com/Electric wind Michael Faraday 1838 | UK | | Electric wind observations |
Early History | Sondhauss Tube | | Karl Sondhauss | Flame | | 1850 | | | | | http://duckduckgo.com/Sondhauss Tube Karl Sondhauss 1850 | | | Sealed end glass tube |
Early History | Gas light response | | John Leconte | Flame | | 1858 | | | | | http://duckduckgo.com/Gas light response John Leconte 1858 | US | | Observed gas lights response to music |
Early History | Rijke Tube | | Pieter Rijke | Flame | | 1859 | | | | | http://duckduckgo.com/Rijke Tube Pieter Rijke 1859 | | | Open ended glass tube |
Early History | Singing Flame | | John Tyndall | Flame | | 1867 | | | | | http://duckduckgo.com/Singing Flame John Tyndall 1867 | UK | | Royal Institution demonstrations Faraday, Wheatstone |
Early History | Viewing electric wind | | August Topler | Ion | | 1868 | | | | | http://duckduckgo.com/Viewing electric wind August Topler 1868 | | | Invent schleiren optics and used them to view electric wind |
Early History | Pyrophone | | Frederic Eugene Kastner | Flame | | 1869 | | | | | https://blog.sciencemuseum.org.uk/pyrophone1/ | | | Also known as burning harmonica or chemical harmonica |
Early History | Aerophone | | Thomas Edison | Air | | 1878 | | | | | http://duckduckgo.com/Aerophone Thomas Edison 1878 | US | | Here for ref, not 100% massless but an early compressed air attempt |
Early History | Singing flame or talking arc | | Lee De Forest | Arc | | 1897 | | | | | http://duckduckgo.com/Singing flame or talking arc Lee De Forest 1897 | US | | The earliest plasma speaker? |
Early History | Singing electric arc | | Hermann Theodor Simon | Arc | Music | 1898 | | | | | http://duckduckgo.com/Singing electric arc Hermann Theodor Simon 1898 | | | Similar work at the same time as Duddell on Arcs University of Gottingen |
Early History | Auxetophone | | Short & Parsons, Victor | Air | Music | 1898 | | | | | http://www.douglas-self.com/MUSEUM/COMMS/auxetophone/auxetoph.htm | | | Nearly massless compressed air amplifier Horace Short, Charles Parsons |
Early History | Singing Arc | | William Du Bois Duddell | Arc | | 1899 | | | | | https://blog.sciencemuseum.org.uk/pyrophone1/ | UK | | Oscillator based on carbon arc lamps |
Early History | Poulsen Arc | | Valdemar Poulsen | Arc | | 1903 | | | | | http://duckduckgo.com/Poulsen Arc Valdemar Poulsen 1903 | | | A radio transmitter based on Duddell's work Also spelt Poulson |
Early History | Telharmonium | | Thaddeus Cahill | Arc | Music | 1906 | | | | | http://duckduckgo.com/Telharmonium Thaddeus Cahill 1906 | | | Added arcs based on Duddell's work |
Early History | Singing Arc | | Max Kohl | Arc | | 1911 | | | | | http://duckduckgo.com/Singing Arc Max Kohl 1911 | | | A demo of Duddell's design |
Forum | If interested in ion drivers, found more info | Audio Asylum | Bondar | Ion | Full | 2004 | | | | | https://web.archive.org/web/20230316010852/https://www.audioasylum.com/cgi/t.mpl?f=general&m=337109 | | | Some Plasmasonic extra details |
Forum | PlasmaSonic a headphone that puts even the Orpheus | Audio Asylum | Bondar | Ion | Full | 2004 | | | | | https://www.audioasylum.com/messages/general/335595/ | | | Some Plasmasonic extra details |
Forum | Dr. Hills Patent discussion | Audio Asylum | cfb | Plasma | Tweeter | 2004 | | | | | https://www.audioasylum.com/cgi/t.mpl?f=tweaks&m=104626 | | | Discussion on the Plasmatronic and Jay Philippbar |
Forum | Forum with Ionovac details | Klipsch | | Plasma | Tweeter | 2006 | | | | | https://community.klipsch.com/index.php?/topic/72366-dukane-ionovac-information/ | | Dukane Ionovac | Forum with Ionovac details 2006 |
Forum | DuKane Ionovac Information | Klipsch | Jack Podplesky | Plasma | Tweeter | 2006 | | | | | https://community.klipsch.com/index.php?/topic/72366-dukane-ionovac-information/ | | | More Ionovac and t3500 details |
Forum | The Hub No moving parts No problem | Audiogon | | | | 2009 | | | | | https://forum.audiogon.com/discussions/the-hub-no-moving-parts-no-problem?sort_order=asc | | | An article/forum focused on Klein |
Forum | Ionophones | Head-fi | Menisk | Plasma | | 2009 | | | | | https://www.head-fi.org/threads/ionophones.432701/ | | | Confusion between corona and plasma speakers, no massless.info to guide them |
Forum | What is the most highly resolving speaker you have ever heard | Whats Best Forum | Mobiusman | Ion | Full | 2012 | | | | | https://www.whatsbestforum.com/threads/what-is-the-most-highly-resolving-speaker-you-have-ever-heard.8390/page-7#post-434049 | | | Anecdotes about John Iverson Force Field Speaker |
Forum | UNUSUAL speaker designs | Audiokarma | | | | 2013 | | | | | https://www.audiokarma.org/forums/index.php?threads/unusual-speaker-designs.494299/ | | | Various odd speakers |
Forum | True Subbass | Audio Heritage | Gibber | Plasma | Tweeter | 2013 | | | | | https://www.audioheritage.org/vbulletin/showthread.php?27051-True-Subbass/page5 | | | Pics of a Phonogen Model 1A? Mentions Braun Ionovac |
Forum | Forum on the Lansche Corona tweeter | Steve Hoffman forum | | Plasma | Tweeter | 2014 | | | | | https://forums.stevehoffman.tv/threads/corona-plasma-tweeter.386189/ | | Lansche Audio | On the Lansche Corona tweeter |
Forum | A forum with some bits of info in the thread | Hifi Sentralen | | | | 2019 | | | | | https://www.hifisentralen.no/forumet/threads/plasmah%C3%B8yttaler.95851/ | | | A forum with some bits of info in the thread |
Forum | Ionic Speakers | The Audio Circuit | | | | 2019 | | | | | https://web.archive.org/web/20190713051542/http://www.audiocircuit.com/DIY/Ionic-Speakers | | | Some brief bits of info (dead site, archive link) |
Forum | Debunking the Myth that a Lighter Diaphragm | Audio Science Review | | | | 2021 | | | | | https://www.audiosciencereview.com/forum/index.php?threads/debunking-the-myth-that-a-lighter-diaphragm-enables-a-faster-speaker-driver.25910/ | | | An in depth discussion about mass in speakers |
Forum | Forum site with various massless speaker discussions | DIYAudio | | | | 2023 | | | | | https://www.diyaudio.com/community/ | | | A great forum site with various massless speaker discussions |
Magazine | Singing Flame | Scientific American | | Flame | | 1877 | Apr | Vol 36 No 15 | 224 | | https://archive.org/details/scientific-american-1877-04-14/page/n1/mode/2up?q=singing | | | A mention of the singing flame |
Magazine | Music in Electric Arcs | New York Times | V.J.Y. | Arc | | 1901 | Apr | 28 | 7 | | https://todayinsci.com/D/Duddell_William/DuddellWilliam-NYT1901.htm | | | First public article on sound from arcs |
Magazine | A Speaking Incandescent Lamp | Scientific American | | Thermo | | 1912 | Dec | 107 | 527 | | https://archive.org/details/sim_scientific-american_1912-12-21_107_25/page/n1/mode/2up?q=speaking+incandescent | | | Observation that a lamp can make sound (thermal) |
Magazine | The De Lange Thermal Telephone | The Electrical Experimenter | | Thermo | | 1915 | Mar | | 202-204 | | https://worldradiohistory.com/Archive-Electrical-Experimenter/EE-1915-03.pdf | | | Thermal wire amplified by diaphragm |
Magazine | The How and Why of Radio Apparatus | The Electrical Experimenter | H. Winfield Secor | Thermo | | 1918 | Jul | | 212 | | https://www.rsp-italy.it/Electronics/Magazines/Electrical%20Experimenter/_contents/Electrical%20Experimenter%201918%2007.pdf | | | On the De Lange thermal phone |
Magazine | The Ionophone | Wireless World | | | | 1922 | Oct | | xxxiii | | https://www.worldradiohistory.com/UK/Wireless-World/20s/Wireless-World-1922-10.pdf#search=%22ionophone%22 | | | Early use of word Ionophone, but not one |
Magazine | Wireless Waves | | Condenser | Plasma | Mic | 1923 | Sep | | | | https://www.newsshopper.co.uk/news/6348224.invention-to-improve-the-sound-of-music/ | | | On the kathodophone |
Magazine | Cellule thermoionique de grande puissance a atmosphere gazeuse et ions positifs | L'Onde Electrique | S. Klein | Plasma | Tweeter | 1946 | Oct | 235 | 367-373 | | https://data.bnf.fr/fr/34348952/onde_electrique/ | | | Kleins first paper on the Ionophone, also a microphone |
Magazine | Ionophone Circuitry | Radio Electronics | E. Aisberg, M. Bonhomme | Plasma | Tweeter | 1951 | Dec | | 33 | | https://worldradiohistory.com/Archive-Radio-Electronics/50s/1951/Radio-Electronics-1951-12.pdf | | | Early Ionophone article |
Magazine | L Ionodyne | Toute La Radio | M. Bonhomme | Plasma | Tweeter | 1951 | Nov | 160 | 291 | | https://www.radiomuseum.org/lf/b/toute-la-radio/ | | | Early Ionophone article |
Magazine | Ionophone | Radio Electronics | E. Aisberg, M. Bonhomme | Plasma | Tweeter | 1951 | Nov | | 44-45 | | https://archive.org/details/RadioElectronics195701/Radio%20Electronics/Radio-Electronics-1951-11/page/n41/mode/2up?q=ionophone | | | Early Ionophone article key |
Magazine | Les bases physiques du haut-parleur et du microphone ioniques | La TSF Pour Tous | S. Klein | Ion | Mic | 1951 | Oct | No.276 | 340-342 | | https://amurane.fr/anpere/revue/la-tsf-pour-tous.htm | | | Use of the Ionophone as a microphone |
Magazine | Ionophone | Toute La Radio | M. Bonhomme | Plasma | Tweeter | 1951 | Oct | 159 | 251 | | https://www.radiomuseum.org/lf/b/toute-la-radio/ | | | Early Ionophone article |
Magazine | Ionophone | La TSF Pour Tous | S. Klein | Plasma | Tweeter | 1951 | Sep | 251 | 278 | | https://amurane.fr/anpere/revue/la-tsf-pour-tous.htm | | | Better article from Klein |
Magazine | M. Siegfried Klein l inventeur de l ionophone recoit le grand prix de l invention | Le Monde | S. Klein | Plasma | Tweeter | 1952 | Dec | | | | https://www.lemonde.fr/archives/article/1952/12/31/m-siegfried-klein-l-inventeur-de-l-ionophone-recoit-le-grand-prix-de-l-invention-1952_2008245_1819218.html | | | An award winner |
Magazine | Loudspeaker Without Diaphragm | Wireless World | F.L.D. | Plasma | Tweeter | 1952 | Jan | 23 | 2 | | http://duckduckgo.com/Loudspeaker Without Diaphragm Wireless World F.L.D. 1952 | | | On Klein ionophone |
Magazine | The Ionophone | L'Onde Electrique | S. Klein | Plasma | Tweeter | 1952 | Jul | 304 | 314-320 | | https://data.bnf.fr/fr/34348952/onde_electrique/ | | | A common reference article, nice and in depth key |
Magazine | Radio Business | Radio Electronics | | Plasma | Tweeter | 1952 | Mar | | 18 | | https://www.worldradiohistory.com/Archive-Radio-Electronics/50s/1952/Radio-Electronics-1952-03.pdf#search=%22ionophone%22 | | | The Institute of Inventive Research early Ionophone patent |
Magazine | A New Speaker Principle | Saturday Review | Edgar Villchur | Plasma | Tweeter | 1952 | Sep | 27 | 60-61 | | http://edgarvillchur.com/a-new-speaker-principle/ | | | Early complete opinion article on the Ionophone key |
Magazine | The reproduction of sound | Physics Today | Edgar Villchur | Plasma | Tweeter | 1952 | Sep | 5 | 10-13 | | https://pubs.aip.org/physicstoday/article-abstract/5/9/10/412962/The-reproduction-of-soundSound-reproduction-has?redirectedFrom=fulltext | | | Similar to first article |
Magazine | Qui na jamais entendu un haut-parleur ionique Audax 1952 | TSF et TV | | Plasma | Tweeter | 1952 | | | | | http://duckduckgo.com/Qui na jamais entendu un haut-parleur ionique Audax 1952 TSF et TV 1952 | | | First review of Audax Ionophone |
Magazine | Interation dans l air de deux Ultra-sons | Toute La Radio | S. Klein | Plasma | Tweeter | 1953 | Nov | | 352-354 | | https://www.radiomuseum.org/lf/b/toute-la-radio/ | | | Using two ionophones at ultrasound to create interference waves |
Magazine | Wanted:- Inertialess Speakers | Radio Electronics | Hugo Gernsback | | | 1953 | Oct | | 33 | | https://worldradiohistory.com/Archive-Radio-Electronics/50s/1953/Radio-Electronics-1953-10.pdf | | | Opinion piece key |
Magazine | Space Sound | Radio Electronics | | Plasma | Tweeter | 1954 | Aug | | 69 | | https://www.worldradiohistory.com/Archive-Radio-Electronics/50s/1954/Radio-Electronics-1954-08.pdf#search=%22ionophone%22 | | | Klein Ionophone early operation details |
Magazine | The Ionophone Demonstrated | Wireless World | A. E. Falkus | Plasma | Tweeter | 1954 | Jan | | 34 | | https://www.worldradiohistory.com/UK/Wireless-World/50s/Wireless-World-1954-01-S-OCR.pdf#search=%22ionophone%22 | | | An early demo to the IEE |
Magazine | The Ionophone is Making Progress | Funkschau | | Plasma | Tweeter | 1954 | Jan | | 438 | | https://www.worldradiohistory.com/INTERNATIONAL/Funkschau/1952/Funkschau-1952-24%20(Original).pdf#search=%22ionophone%22 | DE | | Another Ionophone by Andre Dewald & Sohn AG, Zurich possibly |
Magazine | Industry People | Audio | | Plasma | Tweeter | 1954 | Jun | | 63 | | https://www.worldradiohistory.com/hd2/IDX-Audio/Archive-Audio-IDX/IDX/50s/Audio-1954-Jun-OCR-Page-0063.pdf | | Plessey | Mention of Klein and introduction to America of Ionophone |
Magazine | Germany Tests Ionophon | Popular Electronics | | Plasma | Tweeter | 1955 | Nov | | 39 | | https://www.worldradiohistory.com/hd2/IDX-Consumer/Archive-Poptronics-IDX/IDX/50s/55/Pop-1955-11-OCR-Page-0039.pdf | | Telefunken Deutschland TFK | Klein speaker clone but with different design |
Magazine | Massless Loudspeaker Developed by Telefunken | Tele-Tech and Electronic Industries | | Plasma | Tweeter | 1955 | Nov | | 18 | | https://www.worldradiohistory.com/Archive-Tele-Tech/50s/Tele-Tech-1955-11.pdf#search=%22ionophone%22 | | | Massless Ionophone |
Magazine | Developments in Sound Reproduction - New Equipment | Wireless World | | Plasma | Tweeter | 1956 | Jul | | 335 | | https://www.worldradiohistory.com/hd2/IDX-Business/Magazines/Archive-Sponsor-Magazine-IDX/IDX/50-54/1952/Wireless-World-1956-07-OCR-Page-0035.pdf | | Plessey | Plessey Ionophone |
Magazine | London Letter - Britains First Audio Show | Audio | Richard Arbib | Plasma | Tweeter | 1956 | Jun | | 2-6 | | https://www.worldradiohistory.com/hd2/IDX-Audio/Archive-Audio-IDX/IDX/50s/Audio-1956-Jun-OCR-Page-0006.pdf | | Plessey | Demo of Plessey Ionophone with pic (page 4 and 6 of article) |
Magazine | March Meetings | Wireless World | D. Tombs | Ion | Full | 1956 | Mar | | 147 | | http://duckduckgo.com/March Meetings Wireless World D. Tombs 1956 | | | 22nd Physical Society symposium on Loudspeakers Dr. D.M. Tombs at 3.0 at the Royal Institute of British Architects |
Magazine | The Corona Loudspeaker | Radio and Television News | G. Shirley | Ion | Full | 1956 | Oct | | 57-59 | | https://www.aes.org/e-lib/browse.cfm?elib=284 | | Televex Co. | On Dr. D.M. Tombs corona key |
Magazine | Ionovac Super-Sonic Speaker | Electronic Industries | | Plasma | Tweeter | 1957 | Apr | | 77,151 | | https://www.worldradiohistory.com/Archive-Tele-Tech/50s/Electronic-Industries-1957-04.pdf#search=%22ionophone%22 | | | The improvements of Ionovac over Ionophone |
Magazine | Sanity Fair | High Fidelity Magazine | | Plasma | Tweeter | 1957 | Jul | | 84 | | https://www.worldradiohistory.com/hd2/IDX-Audio/Archive-High-Fidelity-IDX/IDX/50s/High-Fidelity-1957-Jul-IDX-0078.pdf | | Plessey | The super tweeter to end all super-tweeters |
Magazine | Loudspeakers of the Future | Radio Electronics | G. Shirley | Ion | Full | 1957 | Nov | | 44-46 | | http://duckduckgo.com/Loudspeakers of the Future Radio Electronics G. Shirley 1957 | | Televex Co. | On Dr. D.M. Tombs corona and Ionophone key |
Magazine | All About Audio | Radio News | | Plasma | Tweeter | 1957 | Oct | | 106 | | https://www.worldradiohistory.com/Archive-Radio-News/50s/Radio-News-1957-10-R.pdf#search=%22ionophone%22 | | | There can be little doubt that a really perfect loudspeaker would be massless. |
Magazine | Applications of Corona Effects | Electronics | D. Tombs | Ion | Full | 1957 | | 30 | 198 | | http://duckduckgo.com/Applications of Corona Effects Electronics D. Tombs 1957 | | | A decent extra article from Tombs key |
Magazine | Audio Fair Guide | Hi-Fi News | | Plasma | Tweeter | 1957 | | | 464 | | https://www.worldradiohistory.com/hd2/IDX-Audio/Hi-Fi-News-UK/IDX/Hi-Fi-News-1957-04-IDX-60.pdf | | Plessey | Hi-Fi News Audio Fair exhibitors with Plessey Ionophone |
Magazine | Ionophone article | Radio und Fernsehen | | Ion | | 1958 | May | 7 | 296-298 | | http://duckduckgo.com/Ionophone article Radio und Fernsehen 1958 | | | |
Magazine | Ionized Air Cloud for Super Hi-Fi | Radio-TV Experimenter | Jerry Skelly | Plasma | Tweeter | 1958 | | 551 | 134-136 | | https://www.worldradiohistory.com/Archive-Radio-TV-Experimenter/Radio-TV-Experimenter-1958-551.pdf#search=%22ionophone%22 | | | From Ionophone to Ionovac with detail |
Magazine | Ionovac Speaker: Still a Brilliant Failure | Consumer Reports magazine | | Plasma | Tweeter | 1959 | May | | 220 | | https://archive.org/details/sim_consumer-reports_1959_24_index/page/30/mode/2up?q=ionovac | | | Decent opinion piece key |
Magazine | Sound Producing Unit with Ionophone | Radio (Russia) | E. Plotkin, B. Karateev ,V. Prutz | Plasma | Tweeter | 1959 | | 12 | 18 | | http://duckduckgo.com/Sound Producing Unit with Ionophone Radio (Russia) E. Plotkin, B. Karateev ,V. Prutz 1959 | | | Good article based on Ionophone but Russian |
Magazine | Discharge Loudspeaker Kills Mice | The New Scientist | | | | 1960 | Jan | | 100 | | http://duckduckgo.com/Discharge Loudspeaker Kills Mice The New Scientist 1960 | | | Its not a great title |
Magazine | The Driverless Tweeter from Paris | High Fidelity | Norman Eisenberg | Plasma | Tweeter | 1961 | Jan | | 46 | | https://worldradiohistory.com/hd2/IDX-Audio/Archive-High-Fidelity-IDX/IDX/60s/High-Fidelity-1961-Jan-IDX-48.pdf | | | A mention of the Ionovac on show |
Magazine | DuKane Ionovac Speaker Review | High Fidelity | | Plasma | Tweeter | 1961 | Mar | | 50 | | https://worldradiohistory.com/hd2/IDX-Audio/Archive-High-Fidelity-IDX/IDX/60s/High-Fidelity-1961-Mar-a-IDX-52.pdf | | | First review of the Ionovac key |
Magazine | Introducing the Ionovac | Popular Electronics | Dukane | Plasma | Tweeter | 1961 | May | | Cover, 56 | | https://worldradiohistory.com/hd2/IDX-Consumer/Archive-Poptronics-IDX/IDX/60s/61/Pop-1961-05-OCR-Page-0058.pdf | | | More Ionovac review |
Magazine | Lo Ionovac | Radiorama | | Plasma | Tweeter | 1962 | Jan | | 42-44 | | https://archive.org/details/Radiorama_1962_01/page/n41/mode/2up?q=altoparlante | | | Ionovac review |
Magazine | Understanding Radio The Electrostatic...Ionophone | Radio Constructor | W.G.Morley | Plasma | Tweeter | 1964 | Nov | | 241 | | https://www.worldradiohistory.com/UK/Radio-Constructor/60s/RC-1964-11.pdf#search=%22ionophone%22 | | | Bad description of Ionophone function |
Magazine | The Ionophone | Practical Wireless | A. E. Falkus | Plasma | Tweeter | 1965 | Apr | | 1141-1143, 1194 | | https://worldradiohistory.com/hd2/IDX-UK/Technology/Technology-All-Eras/Archive-Practical-Wireless-IDX/IDX/60s/PW-1965-04-IDX-31.pdf | | | Article much later from the man who first demonstrated the Ionophone to the IEE |
Magazine | International Audio Festival and Fair | Wireless World | | Plasma | Tweeter | 1965 | Jun | | 291-292 | | https://www.worldradiohistory.com/UK/Wireless-World/60s/Wireless-World-1965-06.pdf#search=%22ionophone%22 | | | Comparison of Ionophone, Ionofane and Ionovac and schematic |
Magazine | How the Ionophone works | Hi-Fi News | | Plasma | Tweeter | 1965 | May | | | | http://duckduckgo.com/How the Ionophone works Hi-Fi News 1965 | | | key |
Magazine | IonoFane 601 Ionic Treble Unit & 603 Loudspeaker | Hi-Fi News | | Plasma | Tweeter | 1966 | Apr | | | | http://duckduckgo.com/IonoFane 601 Ionic Treble Unit & 603 Loudspeaker Hi-Fi News 1966 | | | Ionofane Review |
Magazine | Fane ionoFane Model 603 Loudspeaker | The Gramophone | | Plasma | Tweeter | 1966 | May | | | | http://duckduckgo.com/Fane ionoFane Model 603 Loudspeaker The Gramophone 1966 | | | Ionofane Review |
Magazine | Whatever Happened to those Revolutionary Loudspeaker Designs? | Stereo Review | George L. Augspurger | | | 1967 | Aug | | 49 | | https://worldradiohistory.com/hd2/IDX-Audio/Archive-Stereo-Review-IDX/IDX/60s/HiFi-Stereo-Review-1967-08-OCR-Page-0047.pdf | | | Opinion piece key |
Magazine | Flame Amplification and a better HiFi Loudspeaker | Popular Electronics | James Joseph | Flame | | 1968 | May | | 47-53 | | https://massless.info/images/Popular%20Electronics%20May%201968%2031401532-Flame-Amplification.pdf | | | Dr. A. G. Cattaneo |
Magazine | The Force Field Loud-speaker | Audio Forum | John Iverson | Ion | Full | 1977 | | Issue 1 | | | http://duckduckgo.com/The Force Field Loud-speaker Audio Forum John Iverson 1977 | | Electra Research | |
Magazine | Le tweeter ionique Realon | Audiophile | Jean Hiraga | Plasma | Tweeter | 1978 | Apr | No.4 | 9-17 | Onkyo | http://retronik.fr/revues/audiophile/1978/LAUp4_Avril_1978.pdf | | | Info on the Onkyo Realon speaker, Ionophone based key |
Magazine | Tumour Eradication by RF | Wireless World | J. A. Carder | Plasma | Tweeter | 1978 | Feb | | 53 | | https://www.worldradiohistory.com/UK/Wireless-World/70s/Wireless-World-1978-02.pdf#search=%22ionophone%22 | | | Anecdote from a developer of Plessey Ionophone |
Magazine | American Audio | Wireless World | Jack Dinsdale and George Tillett | Plasma | Tweeter | 1978 | Oct | | 85,86 | | https://www.worldradiohistory.com/UK/Wireless-World/70s/Wireless-World-1978-10.pdf#search=%22ionophone%22 | | | Hill Plasmatronic at 1978 CES |
Magazine | Coneless Speaker uses plasma driver (the Hill Plasmatronic) | Popular Science | John Free | Plasma | Mid/Tweeter | 1979 | Jun | | | | http://duckduckgo.com/Coneless Speaker uses plasma driver (the Hill Plasmatronic) Popular Science John Free 1979 | | | Another Hill Plasmatronic review |
Magazine | Hill Plasmatronics Type 1 loudspeaker | Stereophile | J. Gordon Holt | Plasma | Mid/Tweeter | 1980 | Apr | | | | https://www.stereophile.com/content/hill-plasmatronics-type-1-loudspeaker | | Stereophile | Stereophile web version of 1980 Plasmatronic article key |
Magazine | Alternative Speaker Technologies | Audio | Gary Stock | | | 1980 | Aug | 64 | 32-37 | | https://worldradiohistory.com/hd2/IDX-Audio/Archive-Audio-IDX/IDX/80s/Audio-1980-08-OCR-Page-0034.pdf | | | Opinion piece |
Magazine | Le tweeter absolut? Le transducteur ionique Klein-Magnat | L'Audiophile | Gerard Chretien | Plasma | Tweeter | 1980 | Dec | | 7-13 | | http://www.silicium.org/archive-retronik/revues/audiophile/1980/LAUp18_D%C3%A9cembre_1980.pdf | | | A late Ionophone article |
Magazine | The Plasmatronics speaker system | The Absolute Sound | | Plasma | Mid/Tweeter | 1980 | Sep | 5,No19 | 276 | | http://duckduckgo.com/The Plasmatronics speaker system The Absolute Sound 1980 | | | Plasmatronics review |
Magazine | Hill Plasmatronic Loudspeaker | International Audio Review | J. Peter Moncrieff | Plasma | Mid/Tweeter | 1980 | | 3 | 130-135 | | http://duckduckgo.com/Hill Plasmatronic Loudspeaker International Audio Review J. Peter Moncrieff 1980 | | | Another Hill Plasmatronic review |
Magazine | It was the perfect high end product | Wall Street Journal | Nelson Pass | | | 1980 | | | Front | | http://duckduckgo.com/It was the perfect high end product Wall Street Journal Nelson Pass 1980 | | | Public news on Nelson Pass Ion Cloud |
Magazine | The Ionic Man | Stereophile | | Ion | Full | 1980 | | 6,No. 1 | Cover, 2, | | https://massless.info/DontBreathe.html | | | Nelson Pass key |
Magazine | High Fidelity News | High Fidelity | Peter Dobbin | Plasma | Tweeter | 1981 | Aug | | 13 | | https://www.worldradiohistory.com/Archive-All-Audio/Archive-High-Fidelity/80s/High-Fidelity-1981-08.pdf#search=%22ionophone%22 | | | The Magnat was sold in America by Dahlquist |
Magazine | Plasmalautsprecher - Wandlersystem der Zukunft? | HiFi Exclusiv | | Plasma | | 1981 | Nov | | | | https://www.plasmaspeaker.de/iml.html | | | Digiplasma IML tweeter key |
Magazine | LAS VEGAS: A glimpse of the future at the Consumer Electronics Show | Electronics Australia | George Tillett | Plasma | | 1982 | Apr | | 28,32 | | https://www.worldradiohistory.com/AUSTRALIA/Electronics-Australia/EA-1982-04.pdf#search=%22ionophone%22 | | | Magnat and Hill Plasmatronics at CES |
Magazine | Un haut-parleur a plasma froid | La Nouvelle Revue Du Son | Henri Bondar | Ion | Full | 1982 | Aug | 59 | 73-80 | | http://duckduckgo.com/Un haut-parleur a plasma froid La Nouvelle Revue Du Son Henri Bondar 1982 | | | Plasmasonic info key |
Magazine | Haut-parleur vers une ere nouvelle | La Nouvelle Revue Du Son | Henri Bondar | Ion | Full | 1982 | Jul | 58 | 71-79 | | http://duckduckgo.com/Haut-parleur vers une ere nouvelle La Nouvelle Revue Du Son Henri Bondar 1982 | | | Plasmasonic info key |
Magazine | Ion Age | Hi-Fi Answers | Jimmy Hughes | Plasma | Tweeter | 1984 | Jul | | Cover, | | https://pinkfishmedia.net/forum/threads/plasma-tweeters.84757/page-2 | | | Magnat Front Cover, Tomorrow s World arch 8 1984 |
Magazine | Plasmasonic | La Nouvelle Revue Du Son | Henri Bondar | Ion | Full | 1984 | Mar | 76 | 100 | | http://duckduckgo.com/Plasmasonic La Nouvelle Revue Du Son Henri Bondar 1984 | | | Plasmasonic info key |
Magazine | Low Inertia Loudspeakers | Hi-Fi News | Stanley Kelly | | | 1985 | Jan | | 55-57 | | http://duckduckgo.com/Low Inertia Loudspeakers Hi-Fi News Stanley Kelly 1985 | | | Technology overview key |
Magazine | The Search for the Perfect Speaker | Stereo Review | Daniel Sweeny | Plasma | | 1985 | Sep | | 194 | | https://www.worldradiohistory.com/Archive-All-Audio/Archive-HiFI-Stereo/80s/HiFi-Stereo-Review-1985-09.pdf#search=%22ionophone%22 | | | Interview with Klein Magnat and Hill Plasmatronic |
Magazine | Magnat Speaker Technology | Stereo Review | | Plasma | Tweeter | 1987 | Sep | | 97 | | https://www.worldradiohistory.com/hd2/IDX-Audio/Archive-Stereo-Review-IDX/IDX/80s/HiFi-Stereo-Review-1987-09-OCR-Page-0099.pdf | | | Advert for Magnat with history, Plasma tweeter 1979 |
Magazine | Le Haut-Parleur, meconnu | Science & Vie | Henri-Pierre Penel | | | 1987 | | | 64-68 | | http://duckduckgo.com/Le Haut-Parleur, meconnu Science & Vie Henri-Pierre Penel 1987 | | | Alain Deraedt and Pascal Freulon, with overview key |
Magazine | Other Types of Loudspeaker | Electronics Australia | Neville Williams | Plasma | | 1989 | Jun | | 107-108 | | https://www.worldradiohistory.com/AUSTRALIA/Electronics-Australia/EA-1989-06.pdf#search=%22ionophone%22 | | | Some Ionophone background |
Magazine | Les Haut-Parleurs Ioniques | Audiophile | Alain Deraedt | Ion | | 1990 | | 22 | 85-88 | | http://6bm8.lab.free.fr/Documentations/Revues/Audiophile/1988-1995/22/ionique.html | | | Great corona wind detail key |
Magazine | Les Haut-Parleurs Ioniques II | Audiophile | Alain Deraedt | Ion | | 1990 | | 23 | 9 | | http://6bm8.lab.free.fr/Documentations/Revues/Audiophile/1988-1995/23/ionique.html | | | Great corona wind detail key |
Magazine | Les Haut-Parleurs Ioniques (suite et fin) | Audiophile | Alain Deraedt | Ion | | 1990 | | 24 | 15-18 | | http://6bm8.lab.free.fr/Documentations/Revues/Audiophile/1988-1995/24/ionique.html | | | Great corona wind detail key |
Magazine | Nelson Pass Simple Sounds Better | Stereophile | Thomas J. Norton | Ion | Full | 1991 | | | | | https://www.stereophile.com/interviews/1191pass/index.html | | | More detail on the Ion Cloud corona loudspeaker |
Magazine | The Strange Life and Bizarre Disappearance of John Iverson | The Absolute Sound | Robert F. Sabin | Ion | | 1994 | Jun/Jul | 96 | | | https://groups.google.com/g/rec.audio.high-end/c/EU4SbMJnXv0 | | | Some good John Iverson background |
Magazine | Technology Hot throat makes a safer sound | New Scientist | Barry Fox | Plasma | Tweeter | 1996 | | | | | https://www.newscientist.com/article/mg15120483-200-technology-hot-throat-makes-a-safer-sound/?ignored=irrelevant | | Credo Audio AG | Article on the Credo tweeter key |
Magazine | Ionic Loudspeakers | Gramophone | Keith Howard | | | 1997 | Jan | | 133-136 | | http://duckduckgo.com/Ionic Loudspeakers Gramophone Keith Howard 1997 | | | Good overview and history key |
Magazine | Plasma Speaker Revived | Hi-Fi News | Barry Fox | | | 1997 | Jan | | 17 | | http://duckduckgo.com/Plasma Speaker Revived Hi-Fi News Barry Fox 1997 | | | A hopeful review key |
Magazine | Comfort like a larger room CSE A-3000 negative ion tweeter | Radio Technology | Kazumasa Takahashi | Plasma | Tweeter | 1999 | Oct | 53 | 92-93 | | http://duckduckgo.com/Comfort like a larger room CSE A-3000 negative ion tweeter Radio Technology Kazumasa Takahashi 1999 | | | CSE A-3000 |
Magazine | Spund Scope | Stereo Sound | Okihiko Kanno | Plasma | Tweeter | 1999 | | 131 | | | http://audiosharing.com/review/?cat=5105 | | | CSE A-3000 |
Magazine | Build a Plasma Tweeter | AudioXpress | Colin Joye | Plasma | Tweeter | 2003 | Apr | 34 Iss 4 | | | https://www.hificollective.co.uk/magazines/audioxpress_apr03.html | | | Paper version of Colin s Project |
Magazine | Care and Maintenance of DuKane Ionovac Tweeters | | D. Schoo | Plasma | Tweeter | 2003 | Dec | | | | http://duckduckgo.com/Care and Maintenance of DuKane Ionovac Tweeters D. Schoo 2003 | | | Oct 2002 original |
Magazine | Dukane Ionovac The History of a Brilliant Failure | | D. Schoo | Plasma | Tweeter | 2004 | Mar | | | | http://duckduckgo.com/Dukane Ionovac The History of a Brilliant Failure D. Schoo 2004 | | | History of Ionophone key |
Magazine | Plasma Tweeter | Elettronica Flash | Diego Barone | Plasma | Tweeter | 2004 | Oct | | 29-34 | | https://www.worldradiohistory.com/INTERNATIONAL/Elettronica-Flash-IT/Elettronica-Flash-2004-10.pdf#search=%22ionophone%22 | | | Project and history of Ionophone |
Magazine | Plasma, a New Tweeter Technology Lansche Audio No.8 | Softpedia | Florin Tibu | Plasma | Tweeter | 2008 | Apr | | | | https://news.softpedia.com/news/Plasma-a-New-Tweeter-Technology-Lansche-Audio-No-8-82971.shtml | | Lansche Audio | Lansche Audio - It's new all over again (2008) key |
Magazine | Das Licht am Ende des Tunnels | Hifitest | | Plasma | Tweeter | 2011 | | | | | https://www.hifitest.de/test/lautsprecher-stereo/lansche-audio-cubus-5069 | | Lansche Audio | Lansche Audio Cubus Review 2011 Hifitest.de |
Magazine | Lansche Audio 5.1 Loudspeaker | Stereophile | John Atkinson | Plasma | Tweeter | 2012 | Jul | | | | https://www.stereophile.com/content/lansche-audio-51-loudspeaker | | Lansche Audio | Lansche Audio 5.1 Review |
Magazine | Er leuchtet (Lansche No. 3.1) | Stereoplay | Holger Biermann | Plasma | Tweeter | 2014 | Jan | | 58-61 | | http://duckduckgo.com/Er leuchtet (Lansche No. 3.1) Stereoplay Holger Biermann 2014 | | | |
Magazine | The DuKane Ionovac Speaker | Antique Radio Classified | D. Schoo | Plasma | Tweeter | 2014 | Jan | 1 | 34-40 | | https://worldradiohistory.com/hd2/IDX-Site-Early-Radio/Archive-Antique-Radio-IDX/IDX/00s/2014-Spring-OCR-Page-0036.pdf | | | Good background article key |
Magazine | Back to the Ion age | Hi-Fi News | Keith Howard | | | 2017 | Aug | | 24-29 | | http://duckduckgo.com/Back to the Ion age Hi-Fi News Keith Howard 2017 | | | Good history key |
Magazine | Launch of Sonarc a labour of love | The Irish Times | Olive Keogh | Plasma | Full | 2017 | Jun | | | | https://www.irishtimes.com/business/innovation/launch-of-sonarc-a-labour-of-love-1.3131089 | | | Sonarc Plasma Speaker background article |
Magazine | The Von Schweikert Research VR-4 Loudspeakers | Positive Feedback | Stu McCreary, Albert Von Schweikert | Plasma | Tweeter | 2020 | May | Iss 109 | | | https://positive-feedback.com/nos/von-schweikert-research-vr-4-loudspeakers/ | US | California Institute of Technology | A plasma speaker Albert termed The Forcefield was built, which used high voltage to break air down into ozone that was then modulated by the signal to produce sound. |
Paper | Letter from Dr. Higgins (hydrogen flame sound) | Journal of natural philosophy, chemistry and the arts | William Nicholson | | | 1802 | | 1 | 130 | | https://books.google.co.uk/books?id=iAgAAAAAMAAJ&pg=PR2&lpg=PR2&dq=%22Letter+from+Dr.+Higgins%22+%22William+Nicholson%22+%221802%22&source=bl&ots=Nq98RWOVV1&sig=ACfU3U3v2QIgHwngCSUGwOFqwU--IsICwg&hl=en&sa=X&ved=2ahUKEwjDruq_sMOBAxVLTEEAHdK8CakQ6AF6BAgOEAM#v=onepage&q=%22Letter%20from%20Dr.%20Higgins&f=false | UK | | On the 1777 discovery by Higgins |
Paper | On acoustic oscillations of the air in heated glass tubes and in closed pipes of non-uniform width | Annalen der Physik und Chemie | Karl Sondhauss | Air | | 1850 | | 79 | 1-34 | | http://duckduckgo.com/On acoustic oscillations of the air in heated glass tubes and in closed pipes of non-uniform width Annalen der Physik und Chemie Karl Sondhauss 1850 | | | What it says |
Paper | On the Influence of Musical Sounds on the Flame of a Jet of Coal Gas | American Journal of Science | John Leconte | Flame | | 1858 | Jan | 2nd Series 23 | 62-67 | | https://www.tandfonline.com/doi/abs/10.1080/14786445808642470 | | | Flame sounds |
Paper | On the vibration of the air in a tube open at both ends | Philosophical Magazine | Pieter L. Rijke | Air | | 1859 | Apr | 17 | 419-422 | | http://duckduckgo.com/On the vibration of the air in a tube open at both ends Philosophical Magazine Pieter L. Rijke 1859 | | | More flame sounds |
Paper | The Pyrophone | Popular Science Monthly | | Flame | | 1875 | | 7 | 447 | | https://en.wikisource.org/wiki/Popular_Science_Monthly/Volume_7/August_1875/The_Pyrophone | | | Giving flame sounds a name |
Paper | On Some Thermal Effects of Electric Currents | Royal Society | William Henry Preece | Thermo | | 1880 | May | | 408-411 | | https://royalsocietypublishing.org/doi/pdf/10.1098/rspl.1879.0139 | | | Early thermal wire work |
Paper | On the Conversion of Radiant Energy into Sonorous Vibrations | Royal Society | William Henry Preece | Thermo | | 1881 | Feb | | 506-520 | | https://royalsocietypublishing.org/doi/pdf/10.1098/rspl.1880.0071 | | | Early thermal wire work |
Paper | Frederick Kastner Obituary | Nature | | Flame | | 1882 | Jul | 26 | 304 | | http://duckduckgo.com/Frederick Kastner Obituary Nature 1882 | | Pyrophone | Obit |
Paper | Akustische Erscheinungen am electrischen Flammenbogen | Ann. Physik | Hermann Theodor Simon | | | 1898 | | Vol 300, No 2 | 233-242 | | https://onlinelibrary.wiley.com/doi/abs/10.1002/andp.18983000204 | | | Electric flames |
Paper | The Reason for the Hissing of the Electric Arc | Nature | Hertha Ayrton | Arc | | 1899 | Jul | No.1552, Vol 60 | 302-305 | | https://www.nature.com/articles/060302a0 | | | Proper investigative physics key |
Paper | The hissing of the electric arc | Journal of the IEE | Hertha Ayrton | Arc | | 1899 | Jun | Vol 28, Iss 120 | | | https://web.archive.org/web/20201129220450/https://ieeexplore.ieee.org/document/5309179 | | | key |
Paper | Some Experiments on the Direct-Current Arc | Nature | William Duddell | Arc | | 1900 | Dec | Vol. 63, no. 1625 | 182-183 | | https://www.nature.com/articles/063182a0 | | | key |
Paper | On Rapid Variations in the Current through the Direct-Current Arc | IEE | William Duddell | Arc | | 1901 | Dec | Vol 30, iss 148 | 232-283 | | https://soundandscience.de/text/rapid-variations-current-through-direct-current-arc | | | key |
Paper | Sur les phenomenes de l arc chantant | Eclairage Electrique | Blondel, Andre | Arc | | 1905 | | Vol 44 | 41-58 and 81-104 | | http://duckduckgo.com/Sur les phenomenes de l arc chantant Eclairage Electrique Blondel, Andre 1905 | | | |
Paper | Sur les phenomenes de l arc chantant | Journal of Physics | Blondel, Andre | Arc | | 1906 | Feb | | 77-97 | | https://jphystap.journaldephysique.org/articles/jphystap/abs/1906/01/jphystap_1906__5__77_0/jphystap_1906__5__77_0.html | | | |
Paper | Speaking Incandescent Lamp | Physikalische Zeitschrift, | K. Ort And J. Ridger | Arc | | 1912 | | | | | https://ia800905.us.archive.org/view_archive.php?archive=/15/items/academictorrents_70ecab072b2792c9239ab8197d3f52cc1d075be1/10.1016%252Fs0016-0032%252813%252990394-x.zip&file=10.1016%252Fs0016-0032%252813%252991207-2.pdf | | | |
Paper | On Thermophones | Royal Society | Peter De Lange | Thermo | | 1915 | | | 239 | | https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.1915.0015 | | | |
Paper | The thermophone as a precision source of sound | Physics ReviewH.D.Arnold, I.B.Crandall | | Thermo | | 1917 | | 10, iss 22 | 22-28 | | https://ia800708.us.archive.org/view_archive.php?archive=/28/items/crossref-pre-1923-scholarly-works/10.1103%252Fphysrev.10.101.zip&file=10.1103%252Fphysrev.10.22.pdf | | | |
Paper | Notes on the Development of a New Type of Hornless Loud Speaker | Journal AIEE | Chester Rice, Edward Kellogg | Arc, Ion | | 1925 | Sep | | 982-991 | | https://www.one-electron.com/Archives/Audio/AudioJournals/Rice%20&%20Kellogg%201925%20Notes%20on%20the%20Development%20of%20a%20New%20Type%20of%20Hornless%20Loud%20Speaker.pdf | US | Bell Labs | The testing of a talking arc (and thermophone), discounted and the world used cones and magnets |
Paper | Contribution a la theorie de l arc chantant musical | Comptes rendus hebdomadaires des seances de l Academie des sciences | Blondel, Andre | Arc | | 1926 | Apr | Vol 82 | 900-903 | | https://link.springer.com/article/10.1007/s00407-012-0101-1 | | | |
Paper | Cellule thermoionique de grande puissance a atmosphere gazeuse | Comptes Rendus | S. Klein | Ion | | 1946 | Jan | | 1282-1284 | | http://duckduckgo.com/Cellule thermoionique de grande puissance a atmosphere gazeuse Comptes Rendus S. Klein 1946 | | | key |
Paper | Augmentation du rendement de la cellule thermoionique a grande puissance par superposition | Comptes Rendus | S. Klein | Ion | | 1951 | Jul | | 143-145 | | http://duckduckgo.com/Augmentation du rendement de la cellule thermoionique a grande puissance par superposition Comptes Rendus S. Klein 1951 | | | |
Paper | Ionic Loudspeakers | IRE Transactions on Audio | J. C. Axtell | Plasma | Tweeter | 1952 | Jul | AU8 | 21-27 | | http://duckduckgo.com/Ionic Loudspeakers IRE Transactions on Audio J. C. Axtell 1952 | | | On Klein ionophone |
Paper | The Klein-Plessey Ionophone loudspeaker | BBC R&D | J.R. Chew | Plasma | | 1954 | Jan | -13 | | | https://www.bbc.co.uk/rd/publications/rdreport_1954_13 | | | key |
Paper | Un nouveau transducteur electroacoustique l ionophone | Acustica | S. Klein | Plasma | Tweeter | 1954 | | Vol 4, No 1 | 77-79 | | https://www.ingentaconnect.com/content/dav/aaua/1954/00000004/00000001/art00026 | FR | | A description of a new French loudspeaker Societe Audax – also in Proceedings of the First ICA-Congress Electro-Acoustics |
Paper | History of Sound Motion Pictures | Journal of the SMPTE | Edward w. Kellogg | Ion, Arc | | 1955 | Jun | Vol 64 | 294 | | https://www.aes.org/aeshc/docs/smpte/movie.sound/kellogg-history1.pdf | US | Bell Labs | Footnote about Kellogg and Rice in Bell Labs with arcs, thermophones and corona discharge devices 1925 |
Paper | Corona Wind Loudspeakers | Nature | D. Tombs | Ion | Full | 1955 | | 176 | 923 | | https://www.nature.com/articles/176923a0 | | | key |
Paper | Corona-Type Loudspeaker | JASA | A. Anthony, F. Oda | Plasma | Tweeter | 1955 | | 27 | 1005 | | https://pubs.aip.org/asa/jasa/article/27/5_Supplement/1005/747258/Corona-Type-Loudspeaker | | | A confused article about Klein Ionophone but calls it a full range corona |
Paper | The Corona Wind Loudspeaker | JAES | G. Shirley | Ion | Full | 1957 | | 5 | 23-31 | | https://www.aes.org/e-lib/browse.cfm?elib=284 | | Televex Co. | On Dr. D.M. Tombs corona key |
Paper | Electroacoustics and Transducers | JASA | F. V. Hunt | | | 1958 | May | 30, No.5 | 375-377 | | https://pubs.aip.org/asa/jasa/article-abstract/30/5/375/645897/Electroacoustics-and-Transducers?redirectedFrom=fulltext | | | |
Paper | Description of a corona-type loudspeaker used in bioacoustic research | Experientia | E. Ackerman, A. Anthony, F. Oda | Ion | Full | 1958 | Oct | 14, Iss 10 | 384-386 | | http://duckduckgo.com/Description of a corona-type loudspeaker used in bioacoustic research Experientia E. Ackerman, A. Anthony, F. Oda 1958 | | | |
Paper | Ozone production by a corona-type loudspeaker and its toxic effects in mice | Experientia | A. Anthony, S. Babcock, F. Oda | Ion | | 1959 | Dec | 15, Iss 12 | 481-482 | | https://europepmc.org/article/MED/13793804 | | | |
Paper | Corona -Type Loudspeaker for Animal Studies | JASA | Eugene Ackerman, Adam Anthony, Fujio Oda | Ion | | 1961 | | 33 | | | https://pubs.aip.org/asa/jasa/article-abstract/33/12/1708/598105/Corona-Type-Loudspeaker-for-Animal-Studies?redirectedFrom=fulltext | | | key |
Paper | A History of the Electric Wind | American Journal of Physics | Myron Robinson | | | 1962 | | Vol 30 | | | https://sci-hub.se/10.1119/1.1942021 | | | |
Paper | Landau Damping of Ion Acoustic Waves in Highly Ionized Plasmas | American Physical Society | A.Y. Wong, R.W. Motley, N.D. Dangelo | | | 1964 | Jan | 133 | 436-443 | | https://annas-archive.org/scidb/10.1103/PhysRev.133.A436?scidb_verified=1 | | | Ions and electrons in a plasma move in phase |
Paper | Exploratory Study Of The Ionophone | MIT BSc | Bruce Lowell Chrisman And George Moore Irwin | Plasma | | 1964 | Jun | | 366-372 | | https://dspace.mit.edu/bitstream/handle/1721.1/97308/33982250-MIT.pdf?sequence=1 | | | |
Paper | Modulated Combustion (Dragon) Loudspeaker | JASA | James Arnold | Flame | | 1965 | | 38 | | | https://pubs.aip.org/asa/jasa/article-abstract/38/3/416/646799/Modulated-Combustion-Dragon-Loudspeaker?redirectedFrom=fulltext | | | |
Paper | The STL-Ionophone sound source | STL-QPSR | Fransson, F. | Plasma | | 1965 | | 6,No. 1 | No 2, page 27-30 | | https://web.archive.org/web/20220307214047/https://www.speech.kth.se/prod/publications/files/qpsr/1965/1965_6_2_027-030.pdf | | | key |
Paper | Acoustic Wave Generation and Amplification in a Plasma | APS | Uno Ingard | Plasma | | 1966 | May | 145, 41 | | | https://journals.aps.org/pr/abstract/10.1103/PhysRev.145.41 | | | |
Paper | Musical Flames | Nature | W. R. Babcock, K. L. Baker & A. G. Cattaneo | Flame | | 1967 | Nov | 216 | 676-678 | | https://fdocuments.net/document/musical-flames-58ea950793eb0.html?page=1 | | | key |
Paper | Preliminary investigation of the electrothermal loudspeaker | Combustion and Flame | John Burchard | Flame | | 1969 | Feb | Vol 13, Iss 1 | 82-86 | | https://www.sciencedirect.com/science/article/abs/pii/0010218069900315 | | | |
Paper | Musical Flames | JAES | W. R. Babcock, K. L. Baker And A. G. Cattaneo | Flame | | 1969 | Jun | Vol 17 Iss 3 | 312-314 | | https://www.aes.org/e-lib/browse.cfm?elib=1581 | | | |
Paper | An application of the STL-ionophone as a microphone | STL-QPSR | Jansson, E. V. And Sundberg, J. | Plasma | Mic | 1969 | | Vol 10, No4 | 51-52 | | https://web.archive.org/web/20220307213944/http://www.speech.kth.se/prod/publications/files/qpsr/1969/1969_10_4_051-052.pdf | | | |
Paper | Ion Acoustic Shock Waves | Physics of Fluids | D. Biskamp And D. Parkinson | | | 1970 | Jan | Vol 13 | 2295-2299 | | https://pubs.aip.org/aip/pfl/article-abstract/13/9/2295/833941/Ion-Acoustic-Shock-Waves?redirectedFrom=fulltext | | | |
Paper | Electrical impedance measurements of an electrothermal loudspeaker | JASA | G. A. Russell | Flame | | 1970 | | Vol 47, no 6 | 1482-1484 | | https://vdocuments.mx/electrical-impedance-measurements-of-an-electrothermal-loudspeaker.html | | | |
Paper | Properties of the STL-ionophone transducer | STL-QPSR | Fransson, F. And Jansson, E. V. | Plasma | | 1971 | | 12 | No 2-3 page 43-52 | | https://web.archive.org/web/20220307213909/https://www.speech.kth.se/prod/publications/files/qpsr/1971/1971_12_2-3_043-052.pdf | | | |
Paper | Horn-type electrothermal loudspeakers | IEEE Transactions on Audio and Electroacoustics | T. Paige, M. Hamid | Flame | | 1972 | Aug | Vol 20, Iss 3 | 218-222 | | https://ieeexplore.ieee.org/document/1162371 | | | |
Paper | Excitation d ondes acoustiques par une flamme | Czech Journal of Physics | M. Fitaire And D. Sinitean | Flame | | 1972 | | B(22) | 394-397 | | https://www.semanticscholar.org/paper/Excitation-d'ondes-acoustiques-par-une-flamme-Fitaire-Sinitean/ca84676431acd294fa51d86bcd5fa7eb7e183d0e | | | |
Paper | Sound sources with corona discharges | Dept. Phys, Ehime Uni, Japan | Kiichiro Matsuzawa | Ion | | 1973 | Nov | Vol 54, No 2 | 494-498 | | https://pubs.aip.org/asa/jasa/article-abstract/54/2/494/750255/Sound-sources-with-corona-discharges?redirectedFrom=fulltext | | | |
Paper | The STL-Ionophone Transducer properties and construction | JAES | Frans J. Fransson, Erik V. Jansson | Plasma | | 1974 | Oct | Vol 58 No 4 | 910-915 | | https://annas-archive.org/scidb/10.1121/1.380743?scidb_verified=1 | | | |
Paper | Flame Loudspeakers | Acustica | M. S. Sodha, V. K. Tripathe, And J. K. Sharma | Flame | | 1978 | | 40 | 68-69 | | https://www.ingentaconnect.com/content/dav/aaua/1978/00000040/00000001/art00012 | | | |
Paper | A corona-type point source for model studies in acoustics | Applied Acoustics | M.K.Lim | Ion | | 1980 | Aug | Vol 14 Iss 4 | 245-252 | | https://www.sciencedirect.com/science/article/abs/pii/0003682X81900207 | | | |
Paper | Corona paper | Sov. Phys.-Acoust | Ostroumov, G.A. | Ion | | 1982 | | 28 | 159-60 | | http://duckduckgo.com/Corona paper Sov. Phys.-Acoust Ostroumov, G.A. 1982 | | | |
Paper | Theory Ingenuity And Wizardry In Speaker Design | JASA | George L. Augspurger | | | 1985 | | 77 | 1303-1308 | | https://www.gammaelectronics.xyz/audio_04-1987_speaker.html | | | Massless designs position in history |
Paper | Effect of neutral fluid velocity on direct conversion from electrical to fluid kinetic energy in an electro-fluid-dynamics (EFP) device | Journal of Physics D:Applied Physics | H. Bondar And F. Bastien | Plasma | | 1986 | | 19 | 1657-1663 | | https://www.researchgate.net/publication/231004302_Effect_of_neutral_fluid_velocity_on_direct_conversion_from_electrical_to_fluid_kinetic_energy_in_an_electro-fluid-dynamics_EFD_device | | | |
Paper | Modeling of a DC glow plasma loudspeaker | JASA | Michael S. Mazzola And G. Marshall Molen | Plasma | | 1987 | Jun | Vol 81, Iss 6 | 1972-1978 | | https://sci-hub.se/10.1121/1.394762 | | | |
Paper | Acoustics and gas discharges: applications to loudspeakers | Journal of Physics D:Applied Physics | F. Bastien | Plasma | | 1987 | Jun | 20 | 1547-1557 | | https://iopscience.iop.org/article/10.1088/0022-3727/20/12/001/pdf | | | key |
Paper | Acoustic refraction by a spark discharge in air | JASA | L. D. Lafleur, J. J. Matesse, And R. L. Spross | Plasma | | 1987 | | 54(2) | | | https://pubs.aip.org/asa/jasa/article-abstract/81/3/606/757701/Acoustic-refraction-by-a-spark-discharge-in?redirectedFrom=fulltext | | | |
Paper | Electroacoustic transducer using corona effect | JAES | Alain Deraedt | Ion | | 1991 | Feb | 90th Conv | 494-498 | | https://www.aes.org/e-lib/browse.cfm?elib=5656 | | | key |
Paper | Distortion, Directivity and Circuit modeling of a Needle Array Plasma Loudspeaker | Thesis Ohio University | Ron Sterba | Ion | | 1991 | Mar | Thesis | | | https://docslib.org/doc/9531523/distortion-directivity-and-circuit-nodeling-of-a-needle-array-plasma | | | |
Paper | Sources acoustiques liees aux transducteurs ioniques | Journal De Physique | P. Bequin, P. Herzog | Plasma | | 1994 | May | | 221-224 | | https://www.researchgate.net/publication/45625416_Sources_acoustiques_liees_aux_transducteurs_ioniques | | | |
Paper | Etude des sources acoustiques associees aux decharges corona negatives | Universite du Maine | V. Montembault | Ion | | 1997 | | | | | https://www.semanticscholar.org/paper/Etude-des-sources-acoustiques-associees-aux-corona-Montembault/180b6f23e37f79e60fb8b5e02a7652b2b18d36aa | | | |
Paper | Fifty Years of Loudspeaker Developments as Viewed Through the | JAES | Mark R. Gander | | | 1998 | Jan/Feb | 46, No 1/2 | 43-58 | | https://www.aes.org/e-lib/browse.cfm?elib=12162 | | | key |
Paper | Rendement d un haut-parleur a decharges corona negatives | Proceedings of the 5th International French Congress on Acoustics | K. Castor And P. Bequin | Ion | | 2000 | | | 676-679 | | https://www.cambridge.org/core/journals/the-european-physical-journal-applied-physics/article/abs/modelling-of-negative-pointtoplane-corona-loudspeaker/3ACB1B9AD6DC7224607F948E9A0593C2 | | | |
Paper | A plasma loudspeaker using a DC carbon arc in a modulated magnetic field | IEEE Conference on Plasma Science | Igor Alexeff | Arc | | 2001 | | | | | https://www.researchgate.net/publication/241141642_A_plasma_loudspeaker_using_a_DC_carbon_arc_in_a_modulated_magnetic_field | | | key |
Paper | Modelling of Negative point to plane corona loudspeaker | The European Physical Journal | | Ion | | 2001 | | 15 | 57-67 | | https://www.cambridge.org/core/journals/the-european-physical-journal-applied-physics/article/abs/modelling-of-negative-pointtoplane-corona-loudspeaker/3ACB1B9AD6DC7224607F948E9A0593C2 | | | key |
Paper | Caracterisation des sources acoustiques associees aux decharges couronnes negatives | Universite du Maine | K. Castor | Ion | | 2001 | | | | | https://theses.fr/2001LEMA1010 | | | |
Paper | Direct Current Glow Discharges in Atmospheric Air | IEEE Transactions on Plasma Science | | Plasma | | 2002 | Feb | 30, No.1 | | | https://ieeexplore.ieee.org/document/1003984 | | | |
Paper | The Plasma Tweeter | MIT | Colin Joye | Plasma | Tweeter | 2003 | Feb | | | | https://www.powershow.com/view4/68988e-YzA1Z/The_Plasma_Tweeter_powerpoint_ppt_presentation | | | Presentation |
Paper | Formation of Large-volume, High-pressure Plasmas in Microhollow Cathode Discharges | Applied Physics Letters | | Plasma | | 2003 | May | 82, No.19 | | | https://inis.iaea.org/search/search.aspx?orig_q=RN:35037688 | | | |
Paper | Solid State Plasma Tweeter | MIT? | Sam Kendig, Danny Shen, Mike Seeman (Colin Joye) | Plasma | Tweeter | 2003 | May | Thesis | | | http://web.mit.edu/skendig/Public/6.101/Plasma%20Tweeter%20-%20Final%20Paper.doc | | | |
Paper | The Plasma Tweeter | MIT | Colin Joye | Plasma | Tweeter | 2003 | Oct | | | | https://www.powershow.com/view4/68988e-YzA1Z/The_Plasma_Tweeter_powerpoint_ppt_presentation | | | Presentation |
Paper | Biefeld-Brown Effect: Misinterpretation of Corona Wind Phenomena | AIAA | Martin Tajmar | Ion | | 2004 | Feb | 42, No 2 | 315-318 | | https://www.researchgate.net/publication/245425484_Biefeld-Brown_Effect_Misinterpretation_of_Corona_Wind_Phenomena | | | Thomas Townsend Brown was full of shit |
Paper | A plasma loudspeaker using a DC carbon arc in a modulated magneticfield | Pulsed Power Plasma Science, 2001 | Alexeff, I., Grace, M., Araya, E., Loria, J.A.D | Plasma | | 2005 | Jun | | 10.1109/ PPPS.2001 .961277 | | https://ieeexplore.ieee.org/document/961277 | | | key |
Paper | Modulated Plasma Audio Transducer | Youngstown State University | Mark Barlow | Plasma | | 2006 | Jan | | | | https://forums.parallax.com/uploads/attachments/40745/69682.pdf | | | A rough Magnat style plasma project |
Paper | Modelling Plasma Loudspeakers | JASA | Ph. Bequina, K. Castor, Ph. Herzog, V. Montembault | Plasma | | 2007 | | Vol 121, Iss 4 | 1960-1970 | | https://pubmed.ncbi.nlm.nih.gov/17471712/ | | | |
Paper | EFA Loudspeakers (Kronos Air Technologies) | ESA Annual Meeting on Electrostatics | Igor A. Krichtafovitch, Sergey V. Karpov, Nels E. Jewell-Larsen,Jacob L. Oharah, Vladislav A. Korolev | Ion | | 2008 | | A2 | | | http://www.electrostatics.org/images/ESA_2008_A2.pdf | | | |
Paper | Hydraulophones: Acoustic musical instruments | University of Toronto | Ryan Jazen | | | 2008 | | Thesis | 1-5 | | https://www.researchgate.net/figure/1-Musical-instruments-and-transducers-by-state-of-matter-14_tbl1_344131901 | | | Good terminology reference |
Paper | Suspended metal wire array as a thermoacoustic sound source | Applied Physics Letters | A. O. Niskanen,J. Hassel,M. Tikander,P. Maijala,L. Gronberg, P. Helisto | Thermo | | 2009 | | 95 | | | https://tikander.net/miikka/Science/Publications_files/niskanen09.pdf | | | |
Paper | A study of the plasma tweeter | Ball State Uni Thesis | Kalalau Cantrell | Plasma | Tweeter | 2011 | May | A-342 | | | https://www.semanticscholar.org/paper/A-study-of-the-plasma-tweeter-Cantrell/50f00f0c6060426b688960d393f86dfc46d801a0 | | | |
Paper | Electro-Acoustic Coupling in a Plasma Gas PhD Thesis | The Open University | Yvonne Sutton | Plasma | | 2011 | Sep | | | | https://www.youtube.com/watch?v=hy-XPgWaU8M | | | |
Paper | Looking into a Plasma Loudspeaker | IEEE Transactions on Plasma Science | Yvonne Sutton, Jon Moore, David Sharp, N Braithwaite | Plasma | | 2011 | | Nov, Vol 39 | 2146 | | https://oro.open.ac.uk/30442/ | | | key |
Paper | The singing arc The oldest memristor? | Building Service-Oriented Government Lessons, Challenges and Prospects | Jean-Marc Ginoux, Bruno Rosetto | Arc | | 2012 | Aug | Chap 39 | | | https://arxiv.org/pdf/1408.5103.pdf | | | |
Paper | On the study of Ionic Microphone | JAES | Hiroshi Akino, Hirofumi Shimokawa, Tadashi Kikutani, Jackie Green | Ion | Mic | 2012 | Oct | 133th Conv | | | https://www.aes.org/e-lib/browse.cfm?elib=17137 | | | |
Paper | Modelling of a corona discharge microphone | Journal of Physics D:Applied Physics | Philippe Bequin, V Joly And Ph Herzog | Ion | | 2013 | Apr | Vol 46, no 17 | | | https://iopscience.iop.org/article/10.1088/0022-3727/46/17/175204 | | | |
Paper | Stable sound wave generation in weakly ionized air medium | Odessa National Polytechnic University | Maxim Chizhov, Maxim Eingorn,Vladimir Kulinskii | Ion | | 2013 | Apr | | | | https://arxiv.org/pdf/1304.7792.pdf | | | |
Paper | Design and Evaluation of Electronic Circuit for Plasma Speaker | World Congress on Engineering | Daniel Severinsen And Gourab Sen Gupta | Plasma | | 2013 | Jul | II | | | https://www.iaeng.org/publication/WCE2013/WCE2013_pp1111-1116.pdf | | | |
Paper | Physics of thermo-acoustic sound generation | Journal of Applied Physics | Daschewski,Boehm,Prager,Kreutzbruck And Harrer | Thermo | | 2013 | Sep | Vol 114 | | | https://www.researchgate.net/publication/260552325_Physics_of_thermo-acoustic_sound_generation | | | key |
Paper | The electrical imagination sound analogies, equivalent circuits, and the rise of electroacoustics | Osiris | Roland Wittje | | | 2013 | | Vol 28 #1 | 40-63 | | https://www.journals.uchicago.edu/doi/10.1086/671362 | | | |
Paper | A Comparison Between Dynamic Loudspeakers and Plasma Loudspeakers | Lulea University of Technology | Aleksandar Jovic | | | 2014 | Jun | Thesis | | | http://www.diva-portal.org/smash/get/diva2:1020842/FULLTEXT03.pdf | | | |
Paper | The High Fidelity Plasma Speaker | APS Division of Plasma Physics, Salisbury University | James Mcgall | Plasma | | 2014 | Oct | Vol 59, No 15 | | | https://ui.adsabs.harvard.edu/abs/2014APS..DPPJP8021M/abstract | | | |
Paper | Plasma Speaker | International Journal of Scientific & Engineering Research | Sagar Samant, Mohammed Husein Sabuwala, Bhargav Gokalgandhi, Amit Pandey | Plasma | | 2014 | Sep | Vol 5, Iss 9 | 572-574 | | https://www.ijser.org/paper/Plasma-Speaker.html | | | |
Paper | Stable Generation Sound Waves In Weak- Ionized Air Environment | Applied Physics (Russian) | Mv Chizhov Et Al | Ion | | 2014 | | 32431 | 45-51 | | https://arxiv.org/pdf/1304.7792.pdf | | | |
Paper | Numerical and Experimental Study of Amplitude Modulated Positive Corona Discharge | Physics | P. Gomez, G. Santiago | Ion | | 2014 | | | | | https://www.semanticscholar.org/paper/Numerical-and-Experimental-Study-of-Amplitude-Gomez-Santiago/4b05b327ea88883f1961961d3a02f11a89103c8c | | | |
Paper | Time-domain and frequency-domain characteristics of audible noise from single corona source | | Xuebao Li, X. Cui, Wenzuo Ma | Ion | | 2014 | | | | | https://www.semanticscholar.org/paper/Time-domain-and-frequency-domain-characteristics-of-Li-Cui/93997278bc4fbb28563346e0f8f084607a4cc55e | | | |
Paper | The correlation between audible noise and corona current in time domain caused by single positive corona source on the conductor | IEEE Transactions on Dielectrics and Electrical Insulation | Xuebao Li, X. Cui, Zhenguo Wang | Ion | | 2015 | Apr | | | | https://www.semanticscholar.org/paper/The-correlation-between-audible-noise-and-corona-in-Li-Cui/2d4d88f145ecce60d06f5cd9cc9b68e8226c0a32 | | | |
Paper | Time-domain characteristics of the audible noise generated by single corona source under positive voltage | IEEE Transactions on Dielectrics and Electrical Insulation | Xuebao Li, X. Cui, Zhenguo Wang | Ion | | 2015 | Apr | | | | https://www.semanticscholar.org/paper/Time-domain-characteristics-of-the-audible-noise-by-Li-Cui/823d9e0037d74ab2d101b1a5307913dbcb48dddc | | | |
Paper | The Measurement and Calibration of Sound Reproducing Systems | JAES | Floyd E. Toole | | | 2015 | Jul | Vol 63 No 7/8 | 512-541 | | https://www.aes.org/e-lib/browse.cfm?elib=17839 | | | |
Paper | Acoustic Characteristics and Distortion of an Ionic Loudspeaker | IEEE LATIN AMERICA TRANSACTIONS | P. M. Gomez, E. D Onofrio And G. Santiago | Plasma | | 2015 | Mar | Vol 13, No 3 | 578-582 | | https://ieeexplore.ieee.org/document/7069077 | | | |
Paper | Thermally Driven Sound Source Application of CNT Nanofoams | Delft Uni of Technology | Hengqian Yi | Thermophone | | 2015 | Sept | | | | https://www.citc.org/resources/uploads/2020/08/Thermally-Driven-Sound-Source.pdf | | | Modern thermophone applications, some history |
Paper | Membraneless Speaker or Plasma Speaker | BRNO UNIVERSITY OF TECHNOLOGY | Josef Kovar | Plasma | | 2015 | | | | | https://core.ac.uk/works/16089234 | | | |
Paper | Konzept und Prototyp eines Ionenwindlautsprechers | 29th TONMEISTERTAGUNG - VDT INTERNATIONAL CONVENTION | S. Merchel, L. Creutzburg, A. Schwock, T. Fleck Und M.E. Altinsoy | Ion | | 2016 | Nov | | | | https://tu-dresden.de/ing/elektrotechnik/ias/aha/ressourcen/dateien/professur/publikationen/Merchel2016c_-_Konzept_und_Prototyp_eines_Ionenwindlautsprechers.pdf?lang=en | | | |
Paper | Thermophony in real gases | Universitat Potsdam thesis | Maxim Daschewski | Flame | | 2016 | Nov | | | | https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/deliver/index/docId/9886/file/daschewski_diss.pdf | | | |
Paper | Conductor Surface Conditions Effects on Audible Noise Spectrum Characteristics of Positive Corona Discharge | IEEE Transactions on Dielectrics and Electrical Insulation | Yong Yi, Yuanjiu Wang, Liming Wang | Ion | | 2016 | | | | | https://www.semanticscholar.org/paper/Conductor-Surface-Conditions-Effects-on-Audible-of-Yi-Wang/01d4a2043921857b74798dd1ff1d865ddc5ff447 | | | |
Paper | Physical modeling and characterization of thermo-acoustic loudspeakers made of silver nano-wire films | Journal of Applied Physics | Paolo La Torraca, L. Larcher, Marco Bobinger, Paolo Pavan | Thermo | | 2017 | Jun | 121(21):214502 | | | https://sci-hub.se/10.1063/1.4984755 | | | |
Paper | Wireless/Wired Automatic Switched plasma Tweeter & Speaker System | Journal of Electronics and Communication Engineering | Rupali Singh Et Al | Plasma | Tweeter | 2017 | Mar/Apr | Vol 12, Iss 2 | 28-33 | | https://iosrjournals.org/iosr-jece/papers/Vol.%2012%20Issue%202/Version-2/D202022833.pdf | | | |
Paper | Implementierung eines Ionenwindlautsprechers ohne Plasmaflamme | Technische Universitat Dresden, Lehrstuhl fur Akustik und Haptik | Sebastian Merchel, Lukas Creutzburg,Andreas Schwock, Tim Fleck Und M. Ercan Altinsoy | Plasma | | 2017 | | | 529-531 | | https://pub.dega-akustik.de/DAGA_2017/data/articles/000109.pdf | | | |
Paper | A simplified formulation of wire-plate corona discharge in air | Journal of Electrostatics | Bouazza, Yanallah, Pontiga, Chen | Ion | | 2018 | Apr | 92 | 54-65 | | https://www.scilit.net/publications/bafa5f89e229f47237aa2bd3dc2e9582 | | | |
Paper | An Ultrasonic Plasma Microphone for Structural Health Monitoring | Princeton Plasma Physics Lab | John Carlsson | Plasma | Mic | 2018 | Sep | Web | 17-3317-1 | | https://www.researchgate.net/publication/228395689_Ultrasonic_structural_health_monitoring_Strategies_issues_and_progress | | | |
Paper | The creation of electric wind due to the electrohydrodynamic force | Nature Communications | Sanghoo Park,Uros Cvelbar, Wonho Choe, Se Youn Moon | Ion | | 2018 | | 0.632638889 | | | https://www.nature.com/articles/s41467-017-02766-9 | | | |
Paper | Coupling and confinement of current in thermoacoustic phased arrays | Science Advances | David M. Tatnell, Mark S. Heath, Steven P. Hepplestone, Alastair P. Hibbins, Samuel M. Hornett, Simon A. R. Horsley, David W. Horsell | Thermo | | 2020 | Jul | 6, iss 27 | | | https://www.science.org/doi/10.1126/sciadv.abb2752 | | | |
Paper | A review of the Plasma Loudspeaker (Ionic Loudspeaker):Principles of operation, general model and parts | JAES | Maria Carolina Rodreguez | | | 2020 | Oct | 149th Conv | | | https://www.aes.org/e-lib/browse.cfm?elib=20948 | | | |
Paper | Development of a plasma electroacoustic actuator for active noise control applications | Journal of Physics D: Applied Physics | S Sergeev, H Lissek, A Howling, I Furno, G Plyushchev And P Leyland | Ion | | 2020 | Sep | Vol 53 | | | https://infoscience.epfl.ch/record/280231 | | | |
Paper | Corona Discharge Actuator as an Active Sound Absorber Under Normal and Oblique Incidence | physics.app-ph | Stanislav Sergeev | Ion | Woofer/Mid | 2021 | Aug | | 2108.13866v1 | | https://arxiv.org/pdf/2108.13866.pdf | | | |
Paper | Microplasma microphones | Acta Acustica | Philippe Bequin , Adalbert Nanda Tonlio, And Stephane Durand | Plasma | Mic | 2021 | Aug | Vol 5, Iss 37 | | | https://acta-acustica.edpsciences.org/articles/aacus/pdf/2021/01/aacus210011.pdf | | | |
Paper | Der Plasma-Lautsprecher als Lehrversuch | PhyDid | Florian Hubert, Friedrich-Alexander, Philipp Dorsch, Patrick K. Kroh, Hans-Michael Guenther | Plasma | | 2021 | Jul | 1/20 | 15-25 | | http://phydid.de/index.php/phydid/article/view/1090 | | | |
Paper | New high fidelity (hi-fi) three-dimensional thermophone CNT sponge | Extreme Mechanics Letters | Jinxin Wang, Houyang Li, Yanxia Feng | Thermo | | 2021 | Nov | Vol 49 | | | https://www.sciencedirect.com/science/article/abs/pii/S2352431621002042 | | | |
Paper | Corona discharge actuator for active sound absorption | Ecole Polytechnique Federale de Lausanne | Stanislav Sergeev, Herve Lissek | Ion | Woofer/Mid | 2021 | Sep | | | | https://www.researchgate.net/publication/354717825_Corona_discharge_actuator_for_active_sound_absorption | | | |
Paper | A Carbon-Based Thermoacoustic Speaker With High Vocal Efficiency and Low Power Consumption | IEEE Sensors Journal | Cheng Zhao, Jiacheng Zhou, Shunyi Zhang, Qingying Ren, Debo Wang | Thermo | | 2022 | Aug | Vol 22 Iss 18 | | | https://ieeexplore.ieee.org/document/9852977 | | | |
Paper | Theory and construction of a plasma tweeter | Signal Processing and Speech Communication Laboratory | Niklas Urban | Plasma | Tweeter | 2022 | Jan | | | | https://www.spsc.tugraz.at/student-projects/Weselak-32.html | | | |
Paper | Pyrolyzed Silk Carbon Fabric-Enabled Wearable Functional Actuators With Heating and Sound-Emitting Capabilities | IEEE Transactions on | Lu-Qi Tao, Guanya Wang, Hao Sun, Congcong Zhu, Zhirong Peng | Thermo | | 2023 | Jan | Vol 70 Iss 3 | | | https://ieeexplore.ieee.org/document/10018841 | | | |
Paper | Ultrabroadband sound control with deep-subwavelength plasmacoustic metalayers | Nature Communications | Stanislav Sergeev, Romain Fleury, Herve Lissek | Ion | Woofer/Mid | 2023 | May | Vol 14, Art 2874 | | | https://www.youtube.com/watch?v=-7Eemh63NcA | | | |
Patent | Improvement in pyrophones | | Frederic Kastner | Flame | Music | 1873 | | | | US164458 | https://worldwide.espacenet.com/patent/search?q=US164458 | US | | Hydrogen flame in tubes pipe organ |
Patent | Speaking Machine | | Edison | Air | | 1878 | | | | US201760 | https://worldwide.espacenet.com/patent/search?q=US201760 | US | | Compressed air, nearly massless for ref |
Patent | Art of and apparatus for generating music | | Cahill | Air | Music | 1897 | | | | US580035 | https://worldwide.espacenet.com/patent/search?q=US580035 | US | | Telharmonium |
Patent | Improvements in and connected with means for the | | Duddell | Arc | | 1900 | | | | GB190021629 | https://worldwide.espacenet.com/patent/search?q=GB190021629 | GB | | Convert DC to audible AC using arc |
Patent | Improvements in or relating to wireless | | Blondel, Andre | Arc | | 1903 | | | | GB190215527 | https://worldwide.espacenet.com/patent/search?q=GB190215527 | GB | | Speaker, mic and circuits based on Duddell |
Patent | Improvements relating to the production of alternating | | Poulsen | Arc | | 1904 | | | | GB190315599 | https://worldwide.espacenet.com/patent/search?q=GB190315599 | GB | | Arc lamp based telegraph transmitter/receiver |
Patent | Improvements in and relating to | | Hermanus | Arc | Mic | 1906 | | | | GB190604585 | https://worldwide.espacenet.com/patent/search?q=GB190604585 | GB | | Arc microphone, piston against electrode |
Patent | Improvements in wireless telephony | | Lee De Forest | Arc | | 1907 | | | | GB190628125 | https://worldwide.espacenet.com/patent/search?q=GB190628125 | GB | | Uses Duddell and Simon's speaking arc |
Patent | Improved method of trans | | Stille | Arc | Mic | 1915 | | | | GB191407202 | https://worldwide.espacenet.com/patent/search?q=GB191407202 | GB | | Arc microphone (reverse of singing arc) |
Patent | Thermic telephone | | Lynden Robert Aernout Baron | Thermo | | 1917 | | | | US1389230 | https://worldwide.espacenet.com/patent/search?q=US1389230 | US | | A thermophone |
Patent | Thermophone and method of making it | | Browne Theodore, Brush Charles | Thermo | | 1920 | | | | US1407726 | https://worldwide.espacenet.com/patent/search?q=US1407726 | US | | Another thermophone variant |
Patent | Thermophone | | De Forest Lee | Thermo | | 1920 | | | | US1526778 | https://worldwide.espacenet.com/patent/search?q=US1526778 | US | | A spiral thermophone in a record groove |
Patent | Improvements in or relating to microphones and the like | | Vogt Hans, Josef Engl, Joseph Massolle | Plasma | Mic | 1921 | | | | GB157442 | https://worldwide.espacenet.com/patent/search?q=GB157442 | GB | Tri-Ergon | The Kathodophone patent |
Patent | Thermic Telephone | | Pieter de Lange, Robert Aernout Baron van Lynden | Thermo | | 1921 | | | | US1367949 | https://worldwide.espacenet.com/patent/search?q=US1367949 | US | | De Lange Thermophone patent |
Patent | Thermophone | | Gray Budd | Thermo | | 1921 | | | | US1398687 | https://worldwide.espacenet.com/patent/search?q=US1398687 | US | | Multi-wire thermophone |
Patent | Telephone Transmitter | | Richard Engler | Ion | | 1923 | | | | US1443620 | https://worldwide.espacenet.com/patent/search?q=US1443620 | US | | Early use of word Ionophone, but not one |
Patent | Method of and means for translating sound waves | | Shrader James E | Ion | | 1926 | | | | US1605295 | https://worldwide.espacenet.com/patent/search?q=US1605295 | US | Westinghouse Electric & Mfg Co. | Early corona wind with radioactive electrodes for ionisation |
Patent | Electrical sound-reproducing apparatus | | De Forest Lee | Ion | | 1927 | | | | US1641664 | https://worldwide.espacenet.com/patent/search?q=US1641664 | US | Forest Phonofilm Corp De | Coiled corona speaker in a parabola key |
Patent | Improvements relating to elec | | General Electric | Ion | | 1927 | | | | GB264811 | https://worldwide.espacenet.com/patent/search?q=GB264811 | GB | | Point to plane corona discharge key |
Patent | System for converting sound waves into electrical waves | | Clyde Snook Homer | Ion | Mic | 1928 | | | | US1690255 | https://worldwide.espacenet.com/patent/search?q=US1690255 | US | Western Electric Co. | Corona microphone |
Patent | Loud Speaker | | L. Fleischmann | Ion | | 1928 | | | | US1687011 | https://worldwide.espacenet.com/patent/search?q=US1687011 | US | | Many point to plane corona speaker |
Patent | Intertransposition of sound | | Lindenblad, Rca | Ion | | 1928 | | | | US1685075 | https://worldwide.espacenet.com/patent/search?q=US1685075 | US | | Point to air/ground corona discharge. 189 patents!, Swedish |
Patent | Sound reproducing method and apparatus | | Ramsey | Plasma | | 1928 | | | | US1680694 | https://worldwide.espacenet.com/patent/search?q=US1680694 | US | | Horn loaded plasma speaker mod RF key |
Patent | Improvements relating to elec | | General Electric | Ion | | 1928 | | | | GB265958 | https://worldwide.espacenet.com/patent/search?q=GB265958 | GB | | Points on a disc corona wind. Key |
Patent | Improvements in or relating to sound-emitting apparatus | | Pintsch Julius | Plasma | | 1929 | | | | GB299847 | https://worldwide.espacenet.com/patent/search?q=GB299847 | GB | | Arc or Spark loudspeaker with horn loading |
Patent | Sound-emitting apparatus | | Ruben | Plasma | | 1929 | | | | US1702951 | https://worldwide.espacenet.com/patent/search?q=US1702951 | US | | Horn loaded plasma key |
Patent | Method of and apparatus for reproducing sound | | Lilienfeld | Ion | | 1929 | | | | US1723244 | https://worldwide.espacenet.com/patent/search?q=US1723244 | US | | Modulate air flow around disc |
Patent | Loudspeaker arrangement | | Loewe | Ion | | 1930 | | | | GB303175 | https://worldwide.espacenet.com/patent/search?q=GB303175 | GB | | Grid modulated ion source key |
Patent | Sound reproducer | | Wolff | Ion | | 1930 | | | | US1758993 | https://worldwide.espacenet.com/patent/search?q=US1758993 | US | | Many points corona discharge. Ref to above patent 1695075 wrong! |
Patent | Sound-emitting device | | Ruben | Ion | | 1930 | | | | US1751888 | https://worldwide.espacenet.com/patent/search?q=US1751888 | US | | Heated cathode ion speaker |
Patent | Improvements in or connected with sound reproducing devices | | British Talking Pictures | Ion | | 1930 | | | | GB303828A | https://worldwide.espacenet.com/patent/search?q=GB303828A | GB | | De Forest Lee assignee in UK |
Patent | Sound Producing Device | | De Forest Lee | Plasma | | 1931 | | | | US1806745 | https://worldwide.espacenet.com/patent/search?q=US1806745 | US | | Modulate gas flow with high voltage |
Patent | Method and device for transforming ultrasonic or infrasound waves | | Klein S. | Plasma | | 1946 | | | | FR910489 | https://worldwide.espacenet.com/patent/search?q=FR910489 | FR | | Ionovac ionophone key |
Patent | Method and device for transforming waves of audible, | | Klein S. | Plasma | | 1951 | | | | GB659796 | https://worldwide.espacenet.com/patent/search?q=GB659796 | GB | | Ionovac ionophone |
Patent | Improvements in or relating to | | Klein S. | Plasma | | 1956 | | | | GB757358 | https://worldwide.espacenet.com/patent/search?q=GB757358 | GB | | Ionovac, Also-US2847516, GB757111, FR1041790, BE519086, FR67664E |
Patent | Electrical Transducer | | Klein S. | Plasma | | 1956 | | | | US2768246 | https://worldwide.espacenet.com/patent/search?q=US2768246 | US | | Ionovac, Also-GB756546, CH317527, DE1095883, FR1041790, US2768246 |
Patent | Ionic triode speaker | | Halus, Holcomb | Plasma | | 1957 | | | | US2793324 | https://worldwide.espacenet.com/patent/search?q=US2793324 | US | | Corona discharge around a hole |
Patent | Improvements in and relating to | | Klein S. | Plasma | | 1958 | | | | GB792312 | https://worldwide.espacenet.com/patent/search?q=GB792312 | GB | | Multi horn Ionovac |
Patent | Electrokinetic apparatus | | Townsend Brown | Ion | | 1960 | | | | US2949550 | https://worldwide.espacenet.com/patent/search?q=US2949550 | US | | Corona wind speaker copy of Tombs |
Patent | Ionofon-type electroacoustic transducer | | Plotkin E B | Plasma | | 1962 | | | | SU151896 | https://worldwide.espacenet.com/patent/search?q=SU151896 | SU | | Improvments on the ionophone key |
Patent | Sound Producer | | Takis N. Panay | Ion | | 1962 | | | | US3022385 | https://worldwide.espacenet.com/patent/search?q=US3022385 | US | | Corona but producing ions with heated wire, radiation etc. not voltage |
Patent | Inertialess Transducer | | William Torn | Plasma | | 1963 | | | | US3105124 | https://worldwide.espacenet.com/patent/search?q=US3105124 | US | | Dukane ionovac |
Patent | Apparatus for producing sound | | Gianni, Ducati | Plasma | | 1965 | | | | US3185778 | https://worldwide.espacenet.com/patent/search?q=US3185778 | US | | Horn loaded plasma |
Patent | Koronaphon | | Wilhelms Walter | Ion | | 1965 | | | | DE1462256 | https://worldwide.espacenet.com/patent/search?q=DE1462256 | DE | | Many random point corona |
Patent | Appareil sonore electrohydro | | Townsend Brown | Ion | | 1966 | | | | FR1427695 | https://worldwide.espacenet.com/patent/search?q=FR1427695 | FR | Electrokinetics | Corona wind copy of Tombs |
Patent | Electrohydrodynamic sound devices | | Townsend Brown | Ion | | 1967 | | | | CA771815 | https://worldwide.espacenet.com/patent/search?q=CA771815 | CA | Electrokinetics | Corona wind copy of Tombs |
Patent | Generation and transmission | | Townsend Brown | Ion | | 1967 | | | | US3018394 | https://worldwide.espacenet.com/patent/search?q=US3018394 | US | | Corona wind copy of Tombs |
Patent | Ionic electroacoustic transducer | | Seligson, Lanier | Ion | | 1969 | | | | US3476887 | https://worldwide.espacenet.com/patent/search?q=US3476887 | US | | Many points to blades corona wind (blades all vertical, points only one side) |
Patent | Method etc. generating an acoustic output | | Babcock Wayne R, Cattaneo Alfredo G | Plasma | | 1970 | | | | GB1199859 | https://worldwide.espacenet.com/patent/search?q=GB1199859 | GB | United Aircraft Corp | Modulating flame with high voltage, also US3565209 and US3516286 |
Patent | A system for imparting movement to ionizable | | Townsend Brown | Ion | | 1972 | | | | GB1274875 | https://worldwide.espacenet.com/patent/search?q=GB1274875 | GB | Guidance Technology Inc. | Corona triode copy of Tombs |
Patent | Koronaphon | | Walter Wilhelms | Plasma | | 1972 | | | | DE2115544 | https://worldwide.espacenet.com/patent/search?q=DE2115544 | DE | | Circuit for a plasma loudspeaker (modulated supply?) |
Patent | Thoughts on the ? speaker | | Kami Kiyoshi | Ion | | 1975 | | | | JPS5092755 | https://worldwide.espacenet.com/patent/search?q=JPS5092755 | JP | Denjo Gepax Research Institute Co. | Horn loaded corona |
Patent | Guide-band plasma-type loudspeaker | | Doucet, Henri | Ion | | 1975 | | | | FR2246151 | https://worldwide.espacenet.com/patent/search?q=FR2246151 | FR | | Corona wind from radioactive surface |
Patent | Omnidirectional corona wind loudspeaker | | Kikukawa Takashi | Plasma | | 1976 | | | | JPS5161816 | https://worldwide.espacenet.com/patent/search?q=JPS5161816 | JP | TDK | Plasma speaker with diaphragm(!) to stop gas |
Patent | Ion Loudspeaker | | Yama Amp Masa Toshi | Plasma | Tweeter | 1976 | | | | JPS5167735 | https://worldwide.espacenet.com/patent/search?q=JPS5167735 | JP | | An ion loudspeaker with a diaphragm to keep the bad gases in (!) |
Patent | Grid controlled ionic wind loud | | Kiyoshi | Plasma | | 1978 | | | | JPS53141612 | https://worldwide.espacenet.com/patent/search?q=JPS53141612 | JP | | Corona triode, wires, single ended and push pull. |
Patent | Ionic Wind Loudspeaker controlled by | | Kiyoshi | Plasma | | 1978 | | | | JPS53137128 | https://worldwide.espacenet.com/patent/search?q=JPS53137128 | JP | | Corona triode, points, single ended and push pull. |
Patent | Ionic Wind Loudspeaker | | Kiyoshi | Plasma | | 1978 | | | | JPS53142218 | https://worldwide.espacenet.com/patent/search?q=JPS53142218 | JP | | Corona triode, just single ended, points |
Patent | Ion Speaker | | Hatake Kiyoshi | Plasma | | 1979 | | | | JPS54119914 | https://worldwide.espacenet.com/patent/search?q=JPS54119914 | JP | | Replaceable plasma speaker tube |
Patent | Plasma Loudspeaker | | Hill | Plasma | | 1979 | | | | GB2023373 | https://worldwide.espacenet.com/patent/search?q=GB2023373 | GB | | Plasmatronic, glow discharges in parallel. US4219705, JP54143225, JP2918300, FR2422314, DE2913804 key |
Patent | Corona-loudspeaker | | Klein S. | Plasma | | 1980 | | | | EP17886 | https://worldwide.espacenet.com/patent/search?q=EP17886 | EP | | Magnat key |
Patent | Corona-effect loudspeaker | | Klein S. | Plasma | | 1980 | | | | EP17885 | https://worldwide.espacenet.com/patent/search?q=EP17885 | EP | | Magnat |
Patent | Sound emitter | | Klein S. | Plasma | | 1981 | | | | US4306120 | https://worldwide.espacenet.com/patent/search?q=US4306120 | US | | Magnat/Ionovac |
Patent | Ionic electro-acoustic transducer | | Bondar | Ion | | 1982 | | | | EP65911 | https://worldwide.espacenet.com/patent/search?q=EP65911 | EP | | Plasmasonic, Also-US4460809, JP58001395, FR2506551, EP0065911 key |
Patent | Transducer for the transformation | | Klein S. | Plasma | | 1984 | | | | US4482788 | https://worldwide.espacenet.com/patent/search?q=US4482788 | US | | Also EP0017886, SU1175352, JP55140400, FR245444, ES8100754 |
Patent | Process and device for converting a periodic | | Bondar | Ion | | 1984 | | | | US4460809 | https://worldwide.espacenet.com/patent/search?q=US4460809 | US | | Ionic pins and plates |
Patent | Corona effect loudspeaker | | Klein S. | Plasma | | 1984 | | | | FR2544951 | https://worldwide.espacenet.com/patent/search?q=FR2544951 | FR | | Magnat |
Patent | Corona-effect sound emitter | | Klein S. | Plasma | | 1984 | | | | US4464544 | https://worldwide.espacenet.com/patent/search?q=US4464544 | US | | Magnat |
Patent | Ionic electroacoustic transducer | | Deraedt | Ion | | 1987 | | | | FR2588710 | https://worldwide.espacenet.com/patent/search?q=FR2588710 | FR | | Push-pull corona wind |
Patent | Electrokinetic transducing met | | Lee | Ion | | 1988 | | | | WO8807785 | https://worldwide.espacenet.com/patent/search?q=WO8807785 | WO | | Corona wind, Offset wires to thicker bars. |
Patent | Electrokinetic transducing met | | Lee | Ion | | 1988 | | | | US4789801 | https://worldwide.espacenet.com/patent/search?q=US4789801 | US | | Corona wind, Offset wires to thicker aerodynamic bars. |
Patent | Electronic-Acoustic transducer | | Jiyannkuroodo Fuurieeru | Ion | | 1990 | | | | JPH02174398 | https://worldwide.espacenet.com/patent/search?q=JPH02174398 | JP | | Corona wind dual point |
Patent | Electroacoustic Transducer | | Fourriere | Ion | | 1990 | | | | EP370846 | https://worldwide.espacenet.com/patent/search?q=EP370846 | EP | | Tolteque, Corona/Glow modulated by plates. JP2174398, FR2638930 |
Patent | Tranducteur electroacoustique, et enceinte | | Bayle Pierre, Gibert Alain | Ion | | 1991 | | | | FR2685156 | https://worldwide.espacenet.com/patent/search?q=FR2685156 | FR | | Many point to plane corona? |
Patent | Method and apparatus for tran | | Ide, Hashimoto | Arc | | 1993 | | | | US5220246 | https://worldwide.espacenet.com/patent/search?q=US5220246 | US | | Possible glow discharge (arc column), single point to plane. Based on DC TIG welder. |
Patent | Speaker utilizing DC corona dis | | Masaaki | Plasma | | 1994 | | | | JPH06327099 | https://worldwide.espacenet.com/patent/search?q=JPH06327099 | JP | | Point to plane corona discharge,+ push pull |
Patent | Method and device for arc sound | | Eizo | Arc | | 1997 | | | | JP2643009 | https://worldwide.espacenet.com/patent/search?q=JP2643009 | JP | | Arc/flame nozzle, a TIG welder |
Patent | Corona Discharge Loudspeaker | | Keith Howard | Ion | | 1997 | | | | GB2312590 | https://worldwide.espacenet.com/patent/search?q=GB2312590 | GB | | Corona wind wires with grids either side. |
Patent | Corona Discharge Loudspeaker | | Adam Chambers | Ion | | 2004 | | | | GB2403372 | https://worldwide.espacenet.com/patent/search?q=GB2403372 | GB | | Corona wind direct amplifier |
Patent | Plasma acoustic transducer e.g. microphone, uses ionized | | Schneider Bernhard | Ion | | 2006 | | | | DE102005022174 | https://worldwide.espacenet.com/patent/search?q=DE102005022174 | DE | | Possibly laser create ion - really vague patent |
Patent | Electroststic Loudspeaker and | | Igor Krichtapovitch | Ion | | 2007 | | | | WO2007127810 | https://worldwide.espacenet.com/patent/search?q=WO2007127810 | WO | Kronos Air Technologies | Kronos EFA application (not granted yet, company closed), corona wind key |
Patent | Sound generator | | Sony Corp | Plasma | | 2008 | | | | JP2010141858 | https://worldwide.espacenet.com/patent/search?q=JP2010141858 | JP | | Sony's attempt at a plasma tweeter design |
Patent | Headphone | | Akino Yutaka | Plasma | | 2008 | | | | JP2008236235 | https://worldwide.espacenet.com/patent/search?q=JP2008236235 | JP | Audio Technica | Plasma headphone key |
Patent | Method of Acoustic Wave Generation | | Krichtafovitch Igor A, Jacob Oharah L, Korolyov Vladislav A, Jewell-Larsen Nels E, Karpov Sergey | Ion | | 2009 | | | | US2009022340 | https://worldwide.espacenet.com/patent/search?q=US2009022340 | US | Kronos Air Technologies | Kronos US version granted |
Patent | Electricity and sound conversion | | Yao Zongdong | Plasma | | 2010 | | | | CN101778327 | https://worldwide.espacenet.com/patent/search?q=CN101778327 | CN | | Plasma speaker controlled by magnetic field, or not the translation is vague |
Patent | Thermoacoustic device | | JIANG KAI-LI | Thermo | | 2010 | | | | US2010054504 | https://worldwide.espacenet.com/patent/search?q=US2010054504 | US | | Carbon nanotube thermophone |
Patent | Plasma loudspeaker | | Zhao Ge, Gao Yifeng, Cao Dong | Plasma | | 2011 | | | | CN202218397 | https://worldwide.espacenet.com/patent/search?q=CN202218397 | CN | | Plasma speaker, classic style with two electrodes, a reflector behind |
Patent | Electroacoustic Transducer | | Akino Yutaka | Plasma | | 2011 | | | | JP2011188037 | https://worldwide.espacenet.com/patent/search?q=JP2011188037 | JP | Audio Technica | Plasma tweeter on inert gas |
Patent | Plasma tweeter e.g. teslums tweeter, for e.g. acoustic lab | | Braun Alexander | Plasma | | 2012 | | | | DE102010026112 | https://worldwide.espacenet.com/patent/search?q=DE102010026112 | DE | | Plasma speaker on tesla coil |
Patent | Electric-arc loudspeaker | | Boris G. Viger | Plasma | | 2012 | | | | RU2496254 | https://worldwide.espacenet.com/patent/search?q=RU2496254 | RU | | Plasma tweeter EAL/VA7 of Viger Audio/Plasma Voice |
Patent | Electro-acoustic transducer | | Akino Hiroshi | Plasma | Tweeter | 2013 | | | | US2013223647 | https://worldwide.espacenet.com/patent/search?q=US2013223647 | US | | Plasma Tweeter with inert gas supply key |
Patent | Control device for plasma loudspeaker and plasma loudspeaker | | Lu Yulong | Plasma | | 2013 | | | | CN101820573 | https://worldwide.espacenet.com/patent/search?q=CN101820573 | CN | | Plasma speaker amp |
Patent | Microphone | | Yu Akino | Plasma | Mic | 2013 | | | | JP5281428 | https://worldwide.espacenet.com/patent/search?q=JP5281428 | JP | | Plasma based microphone |
Patent | Electroacoustic Converter | | Chyzhov Maksym Viktorovych, Yun Kostiantyn Moiseiovych | Ion | | 2014 | | | | UA105621 | https://worldwide.espacenet.com/patent/search?q=UA105621 | UA | Copra Acoustic | Corona wind, WaveIon |
Patent | Electroacoustic transducer | | Yu Akino | Plasma | | 2014 | | | | JP5474614 | https://worldwide.espacenet.com/patent/search?q=JP5474614 | JP | | Plasma speaker |
Patent | Electroacoustic transducer | | Yu Akino | Plasma | Mic | 2015 | | | | JP5777540 | https://worldwide.espacenet.com/patent/search?q=JP5777540 | JP | | Plasma speaker and microphone |
Patent | Plasma loudspeaker earphone | | Shi Peng | Plasma | | 2016 | | | | CN105763985 | https://worldwide.espacenet.com/patent/search?q=CN105763985 | CN | | Plasma headphone |
Patent | Electron tube ionic loudspeaker | | Zhang Zaifei | Plasma | | 2017 | | | | CN205902064 | https://worldwide.espacenet.com/patent/search?q=CN205902064 | CN | | Basic plasma speaker valve amplifier |
Patent | Electroacoustic transducer | | Yu Akino | Plasma | | 2017 | | | | JP6099143 | https://worldwide.espacenet.com/patent/search?q=JP6099143 | JP | | Plasma speaker |
Patent | Microwave plasma loudspeaker | | Fu Wenjie | Plasma | | 2018 | | | | CN107948895 | https://worldwide.espacenet.com/patent/search?q=CN107948895 | CN | | Microwave generated plasma |
Patent | Improved plasma loudspeaker | | Hu Zhenqiang | Plasma | | 2019 | | | | CN110430515 | https://worldwide.espacenet.com/patent/search?q=CN110430515 | CN | | Circular arrangement of plasmas |
Patent | Electroacoustic transducer having controlled ion generation | | Chyzhov Maksym Viktorovich | Ion | Mid/Tweeter | 2019 | | | | US9445202 | https://worldwide.espacenet.com/patent/search?q=US9445202 | US | Copra Acoustic | Corona wind, WaveIon key |
Patent | Axial electric field electroacoustic transducer | | Chyzhov Maksym Viktorovich | Ion | Mid/Tweeter | 2019 | | | | WO2019069289 | https://worldwide.espacenet.com/patent/search?q=WO2019069289 | WO | Copra Acoustic | Corona wind, WaveIon |
Patent | Electronic effects device and method | | Ilja Krumins, Martins Melkis, Kristaps Kalva | Plasma | | 2019 | | | | WO2019135196 | https://worldwide.espacenet.com/patent/search?q=WO2019135196 | WO | | Plasma in a gas discharge tube |
Patent | System and Method for Acoustic to Electronic Transduction | | Johan Carlsson | Plasma | Mic | 2020 | | | | US201862627839 | https://worldwide.espacenet.com/patent/search?q=US201862627839 | US | | Plasma microphone for structural listening |
Patent | Plasma speaker | | Gilligan | Plasma | Full | 2020 | | | | EP3513576 | https://worldwide.espacenet.com/patent/search?q=EP3513576 | EP | Sonarc Innovations | Multiple small plasma tweeters to create a full-range plasma Sonarc |
Patent | Tunable electrostatic ion and fluid flow generator and electroacoustic transducer | | Subrahmanyam Desaraju | Ion | | 2022 | | | | US11273465 | https://worldwide.espacenet.com/patent/search?q=US11273465 | US | | Corona wind speaker, detailed but nothing new key |
Patent | Plasma Based Noise Reduction System | | Sergeev Stanislav, Lissek Herve,Volery Maxime | Ion | | 2023 | | | | EP4116967 | https://worldwide.espacenet.com/patent/search?q=EP4116967 | EP | | Corona Wind Speaker used for Noise Reduction |
Pictures | Kathodofon (kathodophone) | Radio Museum | | Plasma | Mic | 1929 | | | | | https://www.radiomuseum.org/r/lorenz_kathodofon.html | | | Kathodofon (kathodophone) pictures |
Pictures | Ion plasma Corona Wind Loudspeaker | DIY Audio | | | | 2012 | | | | | https://www.diyaudio.dk/2012/09/ionplasmacorona-wind-loudspeaker.html | | | Some nice pics |
Pictures | B&W P2H | CharlieStudio | | Plasma | Tweeter | 2021 | | | | | https://www.facebook.com/CharlieStudioAudio/posts/3529891000469481/ | | Bowers & Wilkins | Full pics of the B&W P2H with Fane 601 Ionophone |
Theoretical | Corona Wind Loudspeaker | | Dr. David M.Tombs | Ion | Full | 1955 | | | | | http://duckduckgo.com/Corona Wind Loudspeaker Dr. David M.Tombs 1955 | UK | (later worked for Hoover!) | Prototypes only, Gerald Shirley (Televex Co.) tried to develop it. Key |
Theoretical | Ionophonic headphone | | Gregor Antes | Plasma | Full | 1964 | | | | | http://www.laborantes.com/iono2.htm | SW | Laborantes | Plasma headphones with Guido Melliger. |
Theoretical | STL Ionophone | | Fransson F. | Plasma | | 1965 | | | | | http://duckduckgo.com/STL Ionophone Fransson F. 1965 | | KTH Computer Science | Used for acoustic measurement |
Theoretical | Flame Loudspeaker, Talking Flame | | Dr. A. G. Cattaneo | Flame | | 1968 | | | | | https://massless.info/images/Popular%20Electronics%20May%201968%2031401532-Flame-Amplification.pdf | | United Technology Center, UTC | Electrodes in a welding torch flame modulating it Wayne Babcock,K. L. Baker |
Theoretical | Force-field Speaker | | John Gordon Iverson | Ion | Full | 1973 | | | | | http://duckduckgo.com/Force-field Speaker John Gordon Iverson 1973 | US | Electro Research then Electron Kinetics | Based on Tombs' corona wind key |
Theoretical | The ForceField | California Institute of Technology | Albert Von Schweikert | Plasma | Tweeter | 1976 | | | | | https://audiokarma.org/forums/index.php?threads/vortex-screen-speakers-what-the.320746/ | US | Vortex Acoustical Engineering | Developed under Dr. Richard Heyser, later developed a non-plasma speaker called forcefield too |
Theoretical | Ionophone | | Ostroumov, G A | Ion | | 1979 | | | | | http://duckduckgo.com/Ionophone Ostroumov, G A 1979 | RU | | Russian prof, ring arrangement |
Theoretical | Ion Cloud Panel | | Nelson Pass | Ion | Full | 1980 | | | | | http://duckduckgo.com/Ion Cloud Panel Nelson Pass 1980 | US | Threshold Audio Inc. | Prototype corona wind wire based panel key |
Theoretical | Push pull corona prototype | | Alain Deraedt | Ion | | 1987 | | | | | http://duckduckgo.com/Push pull corona prototype Alain Deraedt 1987 | FR | | Patent FR2588710, Science&Vie High Tech Article Pascal Freulon key |
Theoretical | Tolteque | | Jean-Claude Fourriere | Plasma | Tweeter | 1992 | | | | | http://www.frenchvintagehifi.com/hardware/category/ahl-toltegraveque | FR | AHL (Acieries du Haut Languedoc) | Demoed at WCES 1992 with plasma tweeter. Tolteques sold were ESL. Ran the Plasmasonic Company, Audio reference |
Theoretical | SDP 001 | | Credo | Plasma | Tweeter | 1996 | | | | | http://duckduckgo.com/SDP 001 Credo 1996 | | Credo Audio AG | Demoed at Ramada by Townshend Audio, a late Ionophone clone Vinzenz von Tscharner |
Theoretical | EFA Loudspeaker | | Igor A. Krichtafovitch, Et.Al | Ion | Full | 2008 | | | | | http://www.electrostatics.org/images/ESA_2008_A2.pdf | RU | Kronos Air Technologies | A classic corona wind design detailed, Company now closed |
Theoretical | Waveion | | Maxim Chizhov, Iskender Dzhanagayev | Ion | Mid/Tweeter | 2014 | | | | | https://www.waveion.net/ | UA | Waveion, Copra Acoustic | Demoed at CES |
Theoretical | Sonarc | | Paul Gilligan | Plasma | Full | 2016 | | | | | http://sonarcinnovations.com/ | IR | Sonarc Innovations | Multiple small plasmas to create a full range plasma speaker Sorcha O'Brien |
Theoretical | Ionomax (Lonomax) | | Jianxing Cai | Plasma | Full | 2017 | | | | | https://www.geeky-gadgets.com/lonomax-plasma-speaker-30-03-2017/ | | Cloudsound | Kickstarter (not funded), exists only as CGI renders of desktop stereo plasma |
Video | AM Tower de-energizing | Youtube | R.F. Burns | Arc | | 2014 | | | | | https://www.youtube.com/watch?v=GHSuInSkHtA&t=48s | | | An arc discharge speaker created as side effect |
Video | InfoComm 2016 Waveion Intros New Audio Technlogy | Youtube | | Ion | Mid/Tweeter | 2016 | | | | | https://www.youtube.com/watch?v=DnvHwpamqFc | | | The Waveion demo |
Video | 2D Animation waveion | Youtube | | Ion | Mid/Tweeter | 2016 | | | | | https://www.youtube.com/watch?v=6Bj9X14U3FI | | | Waveion promo animation |
Video | Viger Audio | Aparat | Viger | Plasma | | 2019 | | | | | https://www.aparat.com/v/tz1r8/Electric-Arc_Loudspeaker_%28ionophone%2C_plasma_speaker%29 | | Viger Audio, Plasma Voice | Viger Audio video key |
Video | What is a plasma tweeter | Youtube | Paul Mcgowan | Plasma | Tweeter | 2019 | | | | | https://www.youtube.com/watch?v=-L_039xLSzw | | PS Audio | What is a plasma tweeter |
Video | Nelson Pass interview | Youtube | Steve Guttenberg | Ion | Full | 2019 | | | | | https://www.youtube.com/watch?v=msE14cWTwKI | | Audiophiliac | Nelson Pass Youtube interview key |
Video | Understanding Electric Discharges | Youtube | | Plasma | | 2022 | | | | | https://www.youtube.com/watch?v=0Pl5qBajPLk | | See the pattern | Excellent explanation of plasma discharges from See the Pattern |
Video | YouTube videos for plasmaspeaker.de | Youtube | Ulrich Haumann | Plasma | Tweeter | 2022 | | | | | https://www.youtube.com/channel/UCF3J4LVij0vRYp6Mgbx1QwQ/videos | | | YouTube videos for plasmaspeaker.de (above) with great detail |
Video | The Hill Plasmatronic demo | Youtube | Tony Salsich | Plasma | Mid/Tweeter | 2023 | | | | | https://www.youtube.com/watch?v=U20nYc8JSc0&t=216s | | | The Hill Plasmatronic being demonstrated key |
Video | The Plasmatronic Hill Type 1 Plasma Tweeter | Youtube | Alan Hill, Tony Silsich, Tom Martin | Plasma | Tweeter | 2023 | | | | | https://youtu.be/aeMCBb_Fo78 | | The Absolute Sound | Decent long video on the Hill Plasmatronic 2023 demo |
Video | A simplified model for a plasma in electric and magnetic fields | Youtube | Nils Berglund | Plasma | | 2023 | | | | | https://youtu.be/z0RS5FVhn-g | | | A visualisation of electrons and ions in a plasma |
Video | High-voltage physics - with David Ricketts | Youtube | The Royal Institution | | | 2023 | | | | | https://youtu.be/0WWjCICqDK8 | | | The background to plasma physics |
Video | Non-hifi use of plasma | Youtube | Franzoli | Plasma | Music | 2023 | | | | | https://www.youtube.com/channel/UCLsUeooHSJlE_5xL4BPQIOQ | | Franzoli Electronics | A video channel which shows the non-hifi use of plasma well |
Web Article | Wikipedia DE - Ionophonic Headphone | | Gregor Antes | Plasma | Full | 1964 | | | | | https://de.wikipedia.org/wiki/Gregor_Antes | | | Background on Gregor Antes (for dates) |
Web Article | Electrovoice Ionovac loudspeaker | Science Museum Group | West, R | Plasma | Tweeter | 1981 | | | | | https://collection.sciencemuseumgroup.org.uk/objects/co35774/electrovoice-ionovac-loudspeaker-loudspeaker | | Electro-Voice (electrovoice) | Where a real Ionovac is located |
Web Article | Welcome to the Plasma Tweeter Zone | | Colin Joye | Plasma | Tweeter | 2001 | | | | | https://web.archive.org/web/20040617095338/http://www.ece.villanova.edu/~cdanjo/plasma.html | | | An early site with a Magnat clone project (page Plasma Tweeters II good too) |
Web Article | Welcome to the Second Plasma Tweeter Zone | | Colin Joye | Plasma | Tweeter | 2002 | | | | | https://web.archive.org/web/20080719165515/http://www.ee.vill.edu/~cdanjo/plasma2.html | | | Second plasma tweeter project page from Colin |
Web Article | The Plasma Mid-Tweeter Project | | Colin Joye | Plasma | Mid/Tweeter | 2002 | | | | | https://web.archive.org/web/20081205023544/http://www.ee.vill.edu/~cdanjo/plasmaMT/mid.html | | | A tiny page with a hint of making a midrange plasma |
Web Article | Massless Speakers | Everything2 | | | | 2000 | | | | | https://everything2.com/title/Massless+Speakers | | | A brief general and inaccurate info page |
Web Article | This page contains some plasma loudspeaker history | | Jay Philippbar | Plasma | Tweeter | 2001 | | | | | https://web.archive.org/web/20030320083046/members.cox.net/jayphil/plasma.html | | | A dead site with some nice old info |
Web Article | The Art of Speaker Design | Nutshell Hifi | Lynn Olson | | | 2002 | | | | | http://www.nutshellhifi.com/library/speaker-design1.html | | | Some info on plasma speakers at the bottom |
Web Article | Plasma Speaker | | Andrew Parsons | Plasma | Tweeter | 2002 | | | | | https://web.archive.org/web/20090313082242/http://homepages.ihug.co.nz/~andrewp/plasma_speaker.html | | | An early project page |
Web Article | Full History and info on Ionovacs | | Roger Russell | Plasma | Tweeter | 2004 | | | | | http://www.roger-russell.com/ionovac/ionovac.htm | | | Full History and info on Ionovacs key |
Web Article | Berchet Online | | Berchet | Ion | | 2004 | | | | | https://web.archive.org/web/20040908002058/http://perso.wanadoo.fr/pol.bct/exemples/plasma.html | | | An early site with project corona wind photos |
Web Article | Plasma Tweeter | Hardcoreaudio | Sebastian Mainka | Plasma | Tweeter | 2004 | | | | | https://web.archive.org/web/20090302055433/http://hardcoreaudio.de/plasmatweeter.htm | | | An early project page |
Web Article | Arcophone | Perth Artifactory | | Plasma | Music | 2010 | | | | | https://wiki.artifactory.org.au/en/projects/arcophone | | | An interesting version of plasma jacobs ladders (polyplasmic!) |
Web Article | Magnat Plasma Technology | | Colin Joye | Plasma | Tweeter | 2011 | | | | | http://magnat.tv/n4.shtml | | MIT | Old page on a diy Magnat clone |
Web Article | VR-100XS to debut next month! (forcefield) | Audio Circle | Albert Von Schweikert | Plasma | Tweeter | 2012 | | | | | https://www.audiocircle.com/index.php?topic=111136.0 | | Cal Tech | In his own words - As I had built a plasma speaker system at the lab at Cal Tech 36 years ago |
Web Article | ExcelPhysics Kickstarter | Kickstarter | | | | 2014 | | | | | https://www.kickstarter.com/projects/excelphysics/the-arc-plasma-speaker | | ExcelPhysics | ExcelPhysics Kickstarter (2014, main site now gone) |
Web Article | Audio Reference Le Son Authentique | frenchvintagehifi | Jean-Claude Fourriere | Plasma | Tweeter | 2015 | | | | | http://www.frenchvintagehifi.com/hardware/category/ahl-toltegraveque | | Audio Reference | Last para and pic - AHL Tolteque and Plasmasonic |
Web Article | Vaughn Plasma II New-Plasma Tweeter | Audiogon | | Plasma | Tweeter | 2016 | | | | | https://www.audiogon.com/listings/full-range-vaughn-plasma-ii-new-plasma-tweeter-2016-04-15-speakers-94552-castro-valley-ca | | Vaugn Loudspeakers | Vaughn Plasma II review |
Web Article | The Once and Future Tweeter | | Bill Leebens | | | 2016 | | | | | https://www.psaudio.com/copper/article/the-once-and-future-tweeter/ | | PS Audio | A nice overview article |
Web Article | Sonarc - The world's first full audio frequency range, massless speaker | Cordis | Paul Gilligan | Plasma | Full | 2018 | | | | | https://cordis.europa.eu/project/id/816414 | | Sonarc Innovations | Grant for Sonarc with their objectives |
Web Article | Plasma Singing Foggy Perspectives of Ionophones | Sudonull | | Plasma | Tweeter | 2019 | | | | | https://sudonull.com/post/20230-Plasma-Singing-Foggy-Perspectives-of-Ionophones | | | A nice plasma article |
Web Article | Sound Emitter Based on the Ionophone Principle | | N.N. Bochkarev, S.M. Gavrilenko | Plasma | Tweeter | 2019 | | | | | https://ldsound-info.translate.goog/zvukovoj-izluchatel-na-principe-ionofona/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp | RU | | A Russian ionophone with circuit and varied claims |
Web Article | Lo Ionophone | | Diego Barone | Plasma | Tweeter | 2021 | | | | | http://www.diegobarone.it/storico/Ionophone.htm | | | Italian DIY Version of Klein Ionophone |
Web Article | Plasma speaker | Wikipedia | | | | 2023 | | | | | https://en.wikipedia.org/wiki/Plasma_speaker | | | Wikipedia s main section, varies in accuracy |
Website | Plasma Tweeter site (old Plasma Speaker/Plasmaton) | plasmatweeter.de | Ulrich Haumann | Plasma | Tweeter | 2010 | | | | | https://web.archive.org/web/20220520175317/http://www.plasmatweeter.de/ | | | Old (but different) version of plasmaspeaker.de |
Website | A Solid-State, FET-Based Ion Tweeter | | Colin Joye, Rob Alejnikov, Mark Blattner | Plasma | Tweeter | 2002 | | | | | https://web.archive.org/web/20110222145000/http://www.ece.villanova.edu/ion/ | | | An old site but good project information |
Website | Ionovac.com | ionovac.com | Jack Podplesky, Daniel Schoo | Plasma | Tweeter | 2013 | | | | | https://web.archive.org/web/20130603070617/http://ionovac.com/ | | | A very good but dead site, link to the wayback machine key |
Website | Plasmaton | plasmaspeaker.de | Ulrich Haumann | Plasma | Tweeter | 2022 | | | | | https://plasmaspeaker.de/index.html | | | Plasma Speaker top site key |