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General Tube & Tube Amp Info, Hifi sites Brand specific sites for tube hifi gear (EICO, Scott,McIntosh, etc) DHT, SET and other sites on triode DIY amplifiers Online and offline  magazines Vintage Organs and other electronic music
Guitar Amp Related Sites Links to More Links Pages FAQ (Frequently Asked Questions ) and sites for novice Tube Amp mavens FTP Download Sites Vintage Jukebox Related Sites

If you know of any links that should be on this page, or find any dead links, please email us at postmaster@triodeel.com.Note:balky or overloaded servers are occasional nuisances on the 'net, if you get a "server not responding" error, just try again later..

FAQ's(lists of Frequently Asked Questions about tubes, amps, etc) , pages especially for novice Tube Mavens, Links to More Links, Guitar Amp and Jukebox Related Sites are towards the bottom of the page. Keep scrolling, it's there!

If you are surfing around, you may find some sites have UNIX compressed files, like .tar , .tar.Z , .gz and .tgz types. You can open these with PKZip, which you can download from http://www.pkware.com. PKZip can also be used to open DOS/Windows .ZIP files, if you are using a Macintosh or Linux (What is Linux , and why are you going to hear more about it? And what's the deal with the penguin, anyway? Click Here to find out)
Windows & Mac Tools for viewing most image formats can be found at http://www.tucows.com and ftp://papa.indstate.edu . For Linux, try http://www.linuxberg.com , http://sunsite.unc.edu or ftp://sunsite.unc.edu , as well as Tucows.
Many sites have files in Adobe PDF format. To read these, you need a copy of Adobe Acrobat,which is a free download.http://www.adobe.com


General Tube Related and Hifi Links

Steve Bench's Home Page, lots of DIY projects for tube audio mavens, including the whole deal on the RAT Tube Tester Project and the Poor Man's Distortion Analyzer, Battery Powered Tube Audio/Guitar Amps, and more. http://members.aol.com/sbench101

Audio Asylum, huge audio bulletin board system. Sections for tubes, single ended amps, wire, speakers, general insanity, and more. Sponsored in part by your friends a Triode Electronics. http://www.audioasylum.com

Duncan Munro's Amp Page: lots of tube data, plus SPICE models & schematics.. http://www.duncanamps.com

Need schematics for old radios? Or just want to look at 'em, so you can see how stuff wuz done in the olden days? This site has 4000 pages of them on line...plus color code charts, etc....data on antique tube types. http://www.nostalgiaair.org

More info & links on antique tube radios.. http://www.antiqueradio.com and http://www.antiqueradios.com. the first has loads o' links, second has an online Bulletin Board where you can post questions about antique radios & amps.

Vandit Kalia's Home Page, with lots of info on restoring Dynaco tube equipment. http://www.netaxs.com/~vkalia

Why transistors aren't much good for switching 50,000 amps at 20,000 volts in under 20 nS,
or, Please Don't Install JFETS in Your A-Bomb Triggers. Discussion of high powered
tube switching devices.
http://www.enviroweb.org/enviroissues/nuketesting/hew/Library/Pasley1.html

Tube Dude's Web Page http://www.cdc.net/~tubedude/index.html

What *is* C37, anyway? Includes technocrat's "horrorshow"...http://www.ennemoser.com
More about C37, in German: http://www.clockwork.de

Sowter Transfomers-Not Famous, Just Great The ghost of the inventor of mu-metal still haunts the English countryside... http://www.sowter.co.uk

Golden Sound DH Cones Home Page http://www.dhcones.com

"Pagina dedicado al sonido de valvulas" ....sitio muy elegante sobre la tema de amplificadores de valvulas, en espanol. http://www.arrakis.es/~igapop

Iggy Pop's Russian Tube Reference Page..hard to find data , and a US/Euro/Russian crossreference. http://www.arrakis.es/~igapop/referenc.htm

Russian Antique Tube Radio Galleryalso interesting pictures of Russian tubes.In both English and Russian.http://home.onego.ru/~vitalybr/index.html

Kliknij tutaj,jesli mowisz po polsku: http://www.mif.pg.gda.pl/homepages/tom/ Lotsa schematics, which you can read even if you can't speak Polish.."lampy" is Polish for "tube"..

Franz Hamberger's page, in both English and Deutsch. Lots of European tube data online. http://www.ginko.de/user/franz.hamberger/

This one has Telefunken data pages (in German), in PDF format, as well as schematics for German theater & stereo amps. http://home.t-online.de/home/t.kliefoth/

Brian McAllister's Home Page. In between bouts of dissing the bloody Sassenachs on the 'web,Brian puts interesting schematics on his page.http://mcallister.simplenet.com

Robert Casey's Pencil Tube Page http://www.netcom.com/~wa2ise

Bry's Ham Radio & Hockey Page:Loads o' links for amatuer radio buffs of whatever persuasion. http://www.mnsinc.com/bry/mega/tubes.htm

Pat Jankowiak: More Ham Radio boatanchor & SWL stuff, mobile tube audio amp, tube hifi stuff, giant Tesla coil, plus loads of electronic design software for download. http://www.montagar.com/~patj/electro.htm

Claudio Bonavolta's site, from Switzerland. Loads of schemattics for  DIY tube hifi amplifiers, preamps, headphone amps, and tube RIAA phono stages. http://www.infomaniak.ch/~bonavolt/audio.htm

Dan Hildebrand's site, with interesting articles from himself, Robert Schneider, and Henry Pasternack. (None represent official opinions of the National Football League). http://www.qnx.com/~danh/tubes.html

Harry Straub's Tube Audio Pages: http://www.0wned.org/~hstraub/tube.htm
Harry also put together a nice page on Hickok Tube Testers:http://www.0wned.org/~hstraub/hickok.htm

Want to see a broadcast engineer at work? Also has pix of our Dynaco upgrade boards http://www.tom.mcnally.net

Technological fossils...project & links page. http://pages.map.com/dandt2/techno/tecnofosl.htm

Ampage, the original guitar amp bulletin board & resource site. http://www.firebottle.com/ampage

Svetlana Home Page...data & application notes on using Svetlana tubes.  http://www.svetlana.com

Steven Bender's Home Page http://pages.prodigy.com/sbender

World Power Systems: Copies of 1960 era tube catalog sheets, data on miniature lamps, interesting test gear. http://www.wps.com

Col. Steve Wilson, amp guy for Stevie Ray Vaughan & the Kentucky Headhunters, talks about tube biasing. http://www.svetlana.com/docs/TechBulletins/tech_talk.html

DEMOSTENES An ancient Greek philosopher returns to sell tubes in Norway! Uff Da!http://demostenes.vestdata.no

Che bella! Andrea Ciuffoli's OTL amp page, diagrams of about every OTL there ever was. http://www.geocities.com/ResearchTriangle/8231/

The Italians sure know how do a web page! Audiomatica has tons of data on obscure & Russian tubes that you might not find elsewhere. http://www.mclink.it/com/audiomatica/sofia

Undue Purversity Tube Page Proving there's more than corn in Indiana! But don't drink on campus...http://home.earthlink.net/~busenitz/Welcome.html

Swedish readers might think this one is about sex, but really Mr Nulla gives a lot of good advice to audiophiles who are being driven to neuroses by slagheaded Audio zine-bots. http://www.io.com/~nulla/stereo.htm

Kevin Kennedy's Web Page http://www.ultranet.com/~kennedyk

Eimac newly revised Care & Feeding of Power Grid Tubes (a work in progress) http://www.eimac.com/cfcontnt.htm

Jim Cross' Vacuum Tubes Unlimited If we don't have it, Jim probably does http://www.cinternet.net/~vactubes

Bob's Radio & TV, Bob specializes in vintage auto radio restoration. http://www.netceptions.com/bobs

Nathan Stewart's Homebrew Tube Amp Corner http://www.firebottle.com/htac

Tanaka & Higuchi's On Line Vacuum Tube Museum http://www.fit.ac.jp/~tanaka/tube.htmL

Eric Scott of Australia's Hadley Records is working on a valve page, too..http://www1.tpgi.com.au/users/hadrecs/VintageData00.html

Jan's Tube Audio Page (in English) http://surf.to/sm5gnn

Mattijs Analogica (Glow Glow Glow Glow!) 200 schematics online. http://www.machmat.com

Radio Restoration & rejuvenating vacuum tubes http://www.best.com/~hero/chrs/restoration.html

Mr Valve/Tubes To Go http://www.primenet.com/~rfwatts/tubes.html

Dave Cigna's Tube Data Page http://www.phy.ohiou.edu/~cigna/tubes/tubes.html

AES Paper: Tubes Vs Transistors http://www.milbert.com/tstxt.htm

Electrical Engineering Circuits Archive http://www.ee.washington.edu/eeca/

Vacuum Tube Parameter Identification Using Computer Methods. Now I wish I took more math in college. Yow. http://www.winternet.com/~biro/articles/VTspice.html

Andy Cowley's page, still under construction, but has some cool 1950's magazine adverts introducing KT88 and ECC83, etc. http://www.cowley.com/andy

Matt Warren's Page: lotsa cool tube info. http://www.jps.net/matt7591

Griffon Valve Pages, info on classic British amps, DIY projects. Try to ignore the "Brittania Rules" midi tune using up your CPU cycles...http://www.aston.ac.uk/~saddrj/

Tube Guy's Web Page...Tube Guy knows a lot about tubes. http://www.tubeguy.com.

What Tubes NASA uses http://logs-web.gsfc.nasa.gov/ctlg/CAT5960.TXT

Firebottle Audio http://www.engr.uark.edu/~lar/fireamps.html and http://www.firebottle.com

If you've always wanted to build an original Williamson amplifier, this page from Holland (in English) will tell you about everything you'd want to know. http://www.xs4all.nl/~ideas/amps

Lots of info on playing antique 78 RPM records on modern hifi systems. http://www.rf.wilmot.clara.net/repro78/repro.html

If you can get past the picture of the cat trying to hypnotize you, Roger Stevens wrote some nice pages on upgrading Dynaco & Eico vintage hifi gear. http://www.voicenet.com/~rstevens

National Institute of Standards & Technology Home Page http://www.bldrdoc.gov/

French Institute of Research & Coordination Acoustic/Music
In French http://www.ircam.fr In English http://www.ircam.fr/index-e.html

Radio Station Locator & Coverage Guidehttp://www5.jagunet.com/~kodis/station.html

Lucky's page from Austria (in English) with interesting tube circuitshttp://www.cis.tu-graz.ac.at/home/lucky/circuits/hifi/hifi.html

The Audiocrew's Page from Finland in English http://www.llaky.fi/audiocrw/vintage/english.htm

in Finnish http://www.llaky.fi/audiocrw/vintage/

Radio Wumpus: Data on WW2 and other odd German tubes (German & English) http://www.snafu.de/~wumpus/index.html

Sound Notes: No Nonsense Hong-Kong Hi-Fi (US mirror site) http://www.geocities.com/CapeCanaveral/3818/

Dave Mann's Hi End Page: http://www.roadsters.com/audio.html

Simple Tube Interchangeability guide (from Hong Kong, in English) http://www.audio.com.hk/vintage/ti.htm

What tubes cost in Japan (don't have a heart attack!) in English http://www.netspace.or.jp/~eifl/eifl/tube.html

Japanese current production hi-end tube amps (in English) http://www.yoshiki.co.jp/index_e.html

Junji Kouchi Home Page, mostly in English. http://www.cypress.ne.jp/kouchi/index.htm

Michael's Tubestuff, info on Heath, Dyna, homebrew projects, more links..http://www.snafu.de/~appelt/

Henry Pasternack's home page, not much but pictures so far. http://www.mindspring.com/~hpasternack/

Everything you wanted to know about the life & times of the famous speaker designer James B. Lansing.. http://www.jblpro.com/history1.html

Eric Barbour's Page http://www.synthfool.com/diy/eb.html

Here's Eric's article from IEEE Spectrum on vacuum tubes:http://www.spectrum.ieee.org/select/0898/tube.html

Thomas Dunker's DIY Audio Home Page (from Norway, In English) Info on horn speakers, etc. No transistor gokks need apply. http://invalid.ed.unit.no/~dunker/index.html

Alan Kimmel's Tube Audio Labs http://members.aol.com/tubelabs/index.html

Don Adamson's Antique Radio Page http://members.aol.com/djadamson/arp.html

Gabe's Tubes & Stuff: Besides a lot of tube info, Gabe visited here, too, and wrote a little article about it. http://members.tripod.com/~gabevee/

Dick Pierce's HiEnd Audio anecdotes...good bench humor... http://www.glue.umd.edu/~hsu/netnews/audio/anecdote.html

Need to find a speaker reconer? Try http://www.recone.com


Brand specific sites for tube hifi gear

Altec Lansing Corp (guess who owns them now?) http://www.alteclansingpro.com

Curcio Audio ..Joe makes the Daniel preamp, and upgrade boards for Mk3 and ST70 Dynaco. http://www.curcioaudio.com

The Unofficial EICO page http://www.users.interport.net/~fiddler/EICO.HTM

ElectroVoice Corp http://www.eviaudio.com

The Official Fisher Vintage Hifi Web Site..pictures of vintage Fisher gear.  http://members.xoom.com/thefishers

Golden Tube Audio may be out of business, but fear not, there's a self-help group for Golden Tube addicts, http://golden_tube.listbot.com

The Heathkit Virtual Museum http://www.heathkit-museum.com

The Heathkit Vintage Hi-Fi Page, with email discussion server for Heath hifi mavens: http://www.mods.com/heath-hifi/

The official JBL Professional web page, which has online info for many old & discontinued JBL products. http://www.jblpro.com

The Official Heathkit Web Page, they can supply schematics for Heaths, and have a list of vendors of parts/service for Heathkits. http://www.heathkit.com

The Unofficial Knight-Kit Page, mostly concentrating on Knight SW/Ham gear. http://www.geocities.com/CapeCanaveral/Hall/8701/ham/knight.htm
There's also a Knight Bulletin Board at: http://pluto.beseen.com/boardroom/t/18370/

The Unofficial H J Leak tribute site,schematics & info on Leak Point One and other classic Leak gear from the UK. Also info on Lowther amplifiers. http://www.werple.net.au/~kiewavly/audio1.html

The Unofficial Marantz site,info on tube & early transistor Marantz gear.http://www.glasgow.com/marantz/mindex.html

Marantz re-issues the famous model 7C preamp, 8B and 9 tube amplifier. http://www.dba-pr.com/marantz/clasc.html

McIntosh Amplifier History http://www.sundial.net/~rogerr/aboutmc.htm

Milbert Car Tube Amps http://www.milbert.com

Sheldon Stokes' Most Excellent Tube Adventure Schematics & info about Quad ESL' s http://www.quadesl.com

And if you like Quad gear, you might want to check out Quad World at http://www.geocities.com/ResearchTriangle/Lab/6722/

The Official Quad web site: http://www.quad-hifi.co.uk

Some pictures of the fabulous E H Scott radios made here in Chicago: http://ctr.ctsp.umkc.edu/~burris/radios/ehscott.html

Biography of radio pioneer E H Scott..his World's Record radio recievers (Chicago to New Zealand in 1924!) and more. http://home.navisoft.com/horn/articles/scott.htm

Hermon Hosmer Scott's World Wide Fan Club HQ (Even RCA apologists can get links on my page! Aren't I sweet!) http://www.enteract.com/~jbyrns/HHScott.html

H H Scott tribute website Pictures, list of models, HH Scott bio, more http://www.hhscott.com

Gordon Rankin's Fabulous Really High End Triode Amplifiers http://www.wavelengthaudio.com

Lots of pix of vintage Western Electric gear, http://www.vintageaudio.net 


Sites relating to triode, single-ended triode (SET) and direct heated triode (DHT) amplifiers

Data on Direct-Heated Triodes (plus lots of others) from Hong Kong http://www.audio.com.hk/vintage/tg_type.htm

The Direct Heated Triode WWW page http://http://www4.big.or.jp/~dh/

Online version of The FI Primer, by JC Morrison: http://tinpan.fortunecity.com/saints/668/primer/index.html

Jim de Kort Dutch direct heated triode maven www.vt52.com

Chris' Tube Haven: Pictures & schematics for 845 SE amp. http://reality.sgi.com/cbrady_denver/audio/

Bob's Tube & Audio Page schematics for PP & SE triode amps.. http://www.geocities.com/TimesSquare/1965/music_etc.html

Yet Another Nice Italian Web Page...Alessandro Galavotti's page, dedicated to DHT (Direct Heated Triode) amplifiers : http://www.geocities.com/ResearchTriangle/Thinktank/1866/indexeng.htm
Same as above, but in Italian: http://www.geocities.com/ResearchTriangle/Thinktank/1866/

More Do It Yourself DHT Projects, this time from Denmark. http://hjem.get2net.dk/aaholm_audio/index.htm

Claudio Bonavolta's site, from Switzerland. Schemattics for  DIY triode hifi amplifiers, preamps, and tube RIAA phono stages. http://www.infomaniak.ch/~bonavolt/audio.htm

Tim Reese's site, Tim put the SET intensive archives of the Joenet Email List online...several megabytes of it. Plus the whole RC-10 RCA tube manual (ca. 1932) http://www.nmr.mgh.harvard.edu/~reese

Audio Bizarro, loads of pictures of mondo cool triode amplifiers, including a 700 lb (300 kg) pair of SE monoblocks using WE-212E's, and a treatise on building your own triode power amp: http://www.teleport.com/~tube/

Single-Ended Triode links page...amps, speakers, etc. http://tinpan.fortunecity.com/fitzgerald/732/set.html

Tom Ronan, the president of the Lowther America Fan Club put together the Radio-Active page on SET amps & speakers that go with them.http://www.enteract.com/~tronan

Gordon Rankin's Fabulous Really High End Triode Amplifiers http://www.wavelengthaudio.com

The following sites are mostly in Japanese, but you can look at the pictures and read the diagrams, at least:
Emission Lab: http://www.machnet.or.jp/pa/upi-k/index.html
Welcome!: http://www2.cds.ne.jp/~yogawa/index.html
 

Tables comparing various similar tube types, in English & Japanese. http://www.asahi-net.or.jp/~UP2J-KNST/tube-eng.htm


On Line and Off Line Magazines

Sound Practices Magazine Visit Joe Roberts' web site before the Illuminati wise up and have him kidnapped! A zillion links, too! http://www.soundpractices.com

Direct from Ol' Blighty (aka England) it's Hi Fi World magazine http://www.hi-fiworld.co.uk and Hi-Fidelity magazine http://www.hi-fidelity.co.uk

The web home for Britain's Practical Wireless Vintage & Valve column.. http://www.valveandvintage.co.uk

AudioFile Magazine from Maylasia, in English. These guys actually have a sense of humor about audio, at any rate it's worth checking out. http://thestar.com.my/audio/welcome.html

Sound Stage Audio Online http://www.soundstage.com/

Enjoy the Music http://www.enjoythemusic.com

Vacuum Tube Valley Magazine http://www.vacuumtube.com.

Audiophilia Online Magazine http://www.audiophilia.com.

Positive Feedback Online Magazine..see what Gizmo has to say about our Tesla/JJ 300B's..www.postive-feedback.com.

M Audio Video, audiophile E-zine for French speakers y para los fanaticos de alta fidelidad quien hablan el espanol:http://www.youppi.cjb.net/

Ultra High Fidelity, Canadian audiophile magazine, nice site which LOADS FAST compared to lot of other 'zine sites. http://www.uhfmag.com

Tube CAD, an e-zine devoted to tube audio circuits, sponsored by GlassWare. A must read for homebrewers & designers. http://www.tubecad.com

The Engineering Musician Web Page and Online Magazine http://www.students.uiuc.edu/~mmccorqu/eng-music.html

Vintage Guitar Magazine with online Bulletin Board for users. http://www.vguitar.com

Harmony Central user reviews of musical equipment and more. http://www.harmony-central.com


Pages on vintage organs & electronic music machines

The big theaterorgans.com web page. Lotsa pictures of monster organs. ;-)http://theatreorgans.com

The Hammond Leslie FAQ (213K) http://theatreorgans.com/hammond/faq/files/faq.txt

Huge page of Hammond Organ and Leslie Speaker links! http://theatreorgans.com/grounds/links.html

Ortigara's Musicville: Hammond & Leslie Nostalgia Lots of pictures of where Leslies & Hammonds were made (one's a few blocks from our office), thanks to Harvey Olsen.http://members.xoom.com/Mvpianos/

Ever think about building a theremin? Here's some schematics for building them, including a tube version: http://www.telalink.net/~theremin/library.html
And an ftp site with more theremin schematics:  ftp://ftp.ecn.nl/pub/misc/theremin
And another site with the history of the theremin, and how the man who invented it got kidnapped in New York by KGB agents in 1939: http://www.obsolete.com/kill/120_years_v2/machines/theremin/index.html

120 Years Of Electronic Music, history of electronic organs & music machines: http://www.obsolete.com/120_years/

The Hammond Tonewheel Organ Web Ringhttp://www.webring.org/cgi-bin/webring?ring=hammond;list


Guitar Amp Related Sites

Duncan Munro's Amp Page: lots of tube data, plus SPICE models & schematics.. http://duncanamps.simplenet.com

The mother of all guitar amp pages: Ampage http://www.ampage.org with Tech-Talk BBS, Chat, Bench Humor, links pages, schematics & more.

The AX84 project, a great place to start for folks who'd like to build their own tube guitar amp: http://www.firebottle.com/ax84

Harmony Central user reviews of musical equipment and more. http://www.harmony-central.com

Weber Vintage Speaker Technology popular US made replacement speakers for guitar amplifiers, also sells Jensen reissue speakers.Also has a very popular bulletin board.http://www.webervst.com

First stop for information on old Fender amplifiers: The Fender Field Guide http://www.zen.org/ware/ffg/ffg.html

How to date Fender Amplifiers by serial number...there's other ways, but Greg Gagliano is compiling how to do it this way, too. http://home.att.net/~ggjag5/fendamp1.htm

Lots of schematics and mod suggestions for newer model tube guitar amps on Steve Ahola's page: http://www.ampage.org/blueguitar/

Miles O'Neal's guitar amp page, which includes Mookie's Taste Tests on various tube types and brands. http://www.rru.com/~meo/Guitar/

More pix of old Fender guitars & amps: http://www.provide.net/~cfh/fender2.html

Time Electronics: Check out the pictures of the monster Fender 400PS bass amp. http://www.timeelect.com

Steve Wilson, seen here undoing some of Dr Stereo's handiwork.

Col. Steve Wilson, amp guy for Stevie Ray Vaughan & the Kentucky Headhunters, talks about tube biasing. http://www.svetlana.com/docs/TechBulletins/tech_talk.html

I'm no guitar picker, but what could be cooler looking than a flip-top Ampeg B-15?? Visit the Unofficial Ampeg Home Page http://users.aol.com/bluemuse/ampeg.html Now even more Ampeg schematics!

And Ampeg's official site is now up, http://www.ampeg.com

Greg Gagliano's Guitaium & Ampeteria lots of pix of Fender and Ampeg amps & guitars...the first picture is a doozy, be patient...http://home.att.net/~gggjaguar/

Schematics for the old Music Man amplifiers can be found here, courtesy of Ernie Ball http://www.ernieball.com/musicman/downloads/amps/index.html

Learn all about Real Vibrato at the unofficial Magnatone page, http://www.vibroworld.com/magnatone

Huberts Tube Amp page....pictures & schematics of rare european guitars & guitar amps.http://persoweb.francenet.fr/~liegeois

Megabytes & megabytes of pictures & info about the justly famous English Vox amplifiers..hours of bugeyed fun for serious Vox phreaks! http://www.voxshowroom.com

Besides operating the Tube Amp Web Ring, Buddy hosts a site with Marshall, Fender, Vox and Ampeg schematics online. http://www.dconn.com/users/buddy/tubeinfo~frame.html

People who like British guitar amps made the old fashioned way may wish to check out the official British (not US) HiWatt site. Yes, they'll ship you and amp direct from the UK if you ask nice... www.audiobro.u-net.com

They're working on a good page of all those hard to find schematics for their old amps..meanwhile, you can check out the official Gibson guitar page at http://www.gibson.com

The Gibson Vintage Amp Page...pictures & info on Gibson amps 1936 to 1968, even lists production quantities made so you can tell how rare your Gibson amp is: http://hem.passagen.se/ekabjan/GibsonAmps.htm

More info & schematics, links on Gibson amps: http://www.jps.net/rsw/gibamp.htm

If I'm gonna give space to Gibson & Ampeg, I guess I should mention the some of the other official sites,http://www.fender.com...http://www.marshallamps.com..http://www.peavey.com... http://www.soldano.comand those nice handmade Victoria Amps, too.. http://www.victoriaamp.com,and last but not least, them nice DR Z amplifiers, http://www.drzamps.com

I guess I should give the Canadians equal time too..especially since a fellow who stress-tested his amps by throwing them off the factory roof is my kinda guy. You can read more about Pete Traynor's  and Garnet Gilles' wonderful amplifiers at viva Analog at http://www.lynx.bc.ca/~jc/ . This site has some interesting info on Fender & Marshall amplifiers as well.

H. Alexander Dumble doesn't have a web site, but any amp with the mystique associated with Dumble has gotta have an unofficial web page...note, kinda big (705K of jpegs!).. http://www.http://www.ma.umist.ac.uk/rl/dumble.html
This page has more Dumble photos, plus info on other vintage & boutique amps.. http://www.asahi-net.or.jp/~hk4y-hys/amp/

Larry's World, more pix & info on Dumbles, plus vintage Fender,Gibson, Marshall schematics, online guitar tuner. Huge page, be patient if you'tre hooked up at 28.8...http://www.deltabluesman.com

Of course, any legendary rock and roll amp like a Marshall has got to have an unofficial web site http://www.olywa.net/blame/br01000.htm,too

The Unofficial Univox Guitar & Amp Page: http://www.timpatton.com/univox/

A big page on  Silvertone (mostly Danelectro) guitars and amplifiers. http://www.norfolkva.com/silvertone/default.htm

Summit Amplifiers, Princeton, IL, USA. Links, tech pages & schematics.http://www.angelfire.com/il/summitamps

Hoffman Amplifiers parts for older Fender amplifiers, or to build your own.http://www.hoffmanamps.com

Aiken amplifiers, tech papers, DIY projects, patent papers, etc... http://www.aikenamps.com

Wzmacniacze gitarowe: Kliknij tutaj,jesli mowisz po polsku: http://www.mif.pg.gda.pl/homepages/tom/ Lotsa schematics, which you can read even if you can't speak Polish.."lampy" is Polish for "tube"..

Pictures of how to build your own Blackface Deluxe Reverb clone. http://www.adelaide.net.au/~ndolling/deluxe.html

Australia-New Zealand Amp Builders' Forum: begrudging added here despite the fact that even after much begging & whining they still haven't sent me any of that killer beer they keep telling me about. http://www.cyber-active.com.au/ANZAmp/

Digital Music Zone interesting DIY schematics. http://members.aol.com/jorman/schem.html , same guy runs the Analog Music Zone,http://www.muzique.com/amz/index.html

Tube CAD, an e-zine devoted to tube audio circuits, sponsored by GlassWare. A must read for homebrewers & designers., http://www.tubecad.com

Musical Instrument Technicians Association: Lots of resources for service needs...http://www.mitatechs.com

R G Keen's Tube Amp & Guitar FAQ,with Interactive Amp Troubleshooting Guide http://www.eden.com/~keen/

Waldo Pepper's Guitar & Guitar Amp FAQ http://www.theshop.net/lihr/Waldo/main.htm

Music Electronics MicroArchive: Includes Tube Amp FAQ, Guitar Amp FAQ, and Tube Amp Theory for Beginners http://www.wcug.wwu.edu/~jamie/schems.html

Ampzilla's Page:Links to lots of schematics sources, guitar amp, organs,hifi and sound reinforcement http://hem1.passagen.se/ampzilla/schema2.htm

Cybermonk may get a lot of flak on alt.guitar.amps for his incessant hammering on the issue of micropower tube amps...but his web page is interesting reading, anyway. http://www.cybtrans.com/guitar/

Not a technical page, but interesting anyway...everything  you ever wanted to know about the the song Louie Louie, why the FBI investigated it,and the over 1,000 covers that have been recorded of this 60's garage-band anthem: http://www.netuser.com/~erp/Louie_Louie.html
Here's the list of all 823 versions of Louie Louie played during a monster marathon on KFJC radio in 1983: http://www.spies.com/reverb/central.html


Pages with Tube Oriented FAQ's (Frequently Asked Questions) and Tube Beginner oriented sites:

Homebrew tube amp corner http://www.firebottle.com/htac

How To Build Your Triode Power Amp. http://www.teleport.com/~tube/contributions.htm

Tube Beginners' Web Pagehttp://members.aol.com/medmac/tubes/begin.html

Music Electronics MicroArchive: Includes Tube Amp FAQ, Guitar Amp FAQ, and Tube Amp Theory for Beginners http://www.wcug.wwu.edu/~jamie/schems.html

The AX84 project, a great place to start for folks who'd like to build their own tube guitar amp: http://www.firebottle.com/ax84

The Hammond Leslie FAQ (213K) http://theatreorgans.com/hammond/faq/files/faq.txt

The Blue Glow in Tubes , why they do it. http://mcallister.simplenet.com/Blueglow.html

FAQ's for rec.audio.* groups http://www.faqs.org/faqs/AudioFAQ/

If you like old tube shortwave and amatuer radio gear, you'll love the Boatanchors FAQ at http://www.cs.unc.edu/~nick/rrab.faq.htm

R G Keen's Tube Amp & Guitar FAQ,with Interactive Amp Troubleshooting Guide http://www.eden.com/~keen/

Waldo Pepper's Guitar & Guitar Amp FAQ http://www.theshop.net/lihr/Waldo/main.htm

Las preguntas mas frecuentes de valvulas (en espanol) http://www.arrakis.es/~igapop/faq.htm
 


Links to More Links!

Audio Society of Minnesota:Lots of links to other Audio Societies http://www.wavefront.com/~asm/

Jenzaz HiFi Linkz (from Sweden, in English) http://home1.swipnet.se/~w-10118/hifi/

Philip's HiFi and Music Links (From Singapore, in English) http://sunflower.singnet.com.sg/~philoh/links.htm

The Huge Audio Related Internet Site List by Steve Ekblad http://wssb.net/~wattsup/page3.html

Tube Related Links and archive of reviews, from austria (in English) http://members.carinthia.com/spickl/

Single-Ended Triode links page...amps, speakers, etc. http://tinpan.fortunecity.com/fitzgerald/732/set.html

Large Antique Tube Radio Links links page.... http://antiqueradio.com/radiolinks.html

Pro Audio Links on the WWW http://www.magna.com.au/~audiotlx/links.htm

Huge Japanese Tube Links Page! http://home.highway.or.jp/teddy/e/tubes/links.htm

Huge page of Hammond Organ and Leslie Speaker links! http://theatreorgans.com/grounds/links.html

A huge list of Ham Radio Links (large, 384Kbytes!)
 


FTP sites

Many ftp sites have UNIX gz-zipped files, like .tar , .tar.Z , .gz and .tgz types. You can open these with PKZip, which you can download from http://www.pkware.com. Tools for viewing UNIX style image formats can be found at http://www.tucows.com and ftp://papa.indstate.edu

ftp://ftp.access.digex.net/pub/access/rdd/valves-or-tubes-%26-audio-etc./amplifiers/

ftp://bauv106.bauv.unibw-muenchen.de/pub/claude/

Note the above ftp has had slow connects & access problems occasionally. You might have to try again later.

file://nyquist.ee.ualberta.ca/pub/cookbook/audio/

An ftp site with theremin schematics:  ftp://ftp.ecn.nl/pub/misc/theremin


Jukebox related sites

PR Novelty Milwaukee-based jukebox & theater-amp repair http://gameroomantiques.com/PRnovelty.htm

John's Jukebox & Pinballxsistor & diode sub info for Wurlitzer & Seeburg http://www.flippers.com

Jim Jukebox's Home Page: Info on old tube jukeboxes http://www2.eos.net/soundcon/jimjukebox.htm

The Official Wurlitzer Jukebox Web Site http://www.wurlitzer-jukebox.com

My favorite jukebox: The Official Rowe-AMI Home Page, http://www.roweami.com

Yes, Virginia, there really was a Mr. Rockola! http://www.rock-ola.com

Manuals for just about every kind of jukebox. http://rogue.northwest.com/~cerasin/manuals.html

The WWW Site for collectible jukeboxes, http://www.jukeboxes.com

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