in educational (.edu) web sites.
Lee Deforest invented the three electrode vacuum
tube amplifier, better known as the Audion, in 1906. He followed the work of British
engineer John Ambrose Fleming who had developed the first electron tube, the Diode
Thermionic Valve, in 1904. The development of the Audion made possible the
amplification of the weak signals produced by microphones, and thus, live broadcasting.
The Audion and its successors also began to alter the manner in which recordings were
made. Prior to electrical amplification, recordings were made acoustically with large horn
assemblies. By 1925, most recordings used the new electrical process.
those who want to tackle the challenge of building their own electrode vacuum tube
amplifier, here are some educational (.edu) web sites. Read " Tubes Mechanics & Mystique" to
understand a musician's love for tubes and why they are still used today.
for all-tube guitar amp designs.
1929 Two Tube
Prototyping: Tips and Pitfalls engr.unl.edu
Technology of the
Modern Music Studio arts.ucsc.edu
419 Electronic Music Relative Links mtsu.edu
Electronics Shop engr.unl.edu
Vacuum Tube Audio
Web Sites for Electronic Schematics, Software, etc. ee.ualberta.ca
Vacuum Tube Research in commercial (.com) web sites with tons of information!
Ampage tube amps, music, and electronics
Analog Music Zone
schematics for guitar effects, electronic circuits, and recording tips & techniques
Duncan's Amp Pages internet resource for those interested in
guitar amplifier, vacuum tubes, and design tools (SPICE)
Guitar Notes links, lessons, licks, and more
Hoffman Amplifiers vintage guitar tube amplifiers, parts, and
Homebrew Tube Amp Corner list of vacuum tube amplifiers
PAiA Electronics kits for innovative electronic products
The Virtual Times
audio and acoustic links of internet sites and newsgroups
Vacuum Tube Research in
network (.net) web sites
RADIO COLLECTING LINKS
Classic Radio Gallery
Vacuum Tube Links
electron vacuum tube internet sites