Vacuum Tube Research - Internet Reference

Vacuum TubeResearch
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 Britishengineer 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.

For those who want to tackle the challenge of building their own electrode vacuum tubeamplifier, 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.

Schematicsfor all-tube guitar amp designs.

1929 Two TubeRadio oak.cats.ohiou.edu

ElectronicPrototyping: Tips and Pitfalls engr.unl.edu

Technology of theModern Music Studio arts.ucsc.edu

RIM/MUSI 419 Electronic Music Relative Links mtsu.edu

UN-L EngineeringElectronics Shop engr.unl.edu

Vacuum Tube Audio hawaii.edu

Web Sites for Electronic Schematics, Software, etc. ee.ualberta.ca