Antique Electronic Supply
D & C Electronics Spring Hill, FL
Electro Sonic, Inc. Tubes and components
International Components Corp. - Excellent pricing.
1-800-645-9154 will bring tube, and components catalogs. (US & Canada Only)
R.F. Parts Company Another good source for tubes
Radio Electric Supply Good selection of tubes at reasonable prices
Richardson Electronics La Fox, IL
SND Tube Sales Tubes and tube testers
Solen Electronique Inc. St-Hubert, QC
The Tube Store Tubes, tube sockets and more, guitar amps, high end home audio.
Tube Depot tubes, guitar amps and more
TUBES.RU Amateur tubes, and more - Russian source
Vacuum Tubes, Inc. Tubes, parts & books - Orlando, FL
ECONCO Woodland, CA
Eimac San Carlos, CA
Electro-Harmonix largest remaining vacuum factory in the world
Penta Laboratories Chatsworth, CA
Photonis Lancaster, PA
Svetlana St. Petersburg, Russia
Teledyne e2v Ltd. Chelmsford, Essex, U.K.
Thales Electron Devices Cedex, France