See also:

• Business: Consumer Goods and Services: Electronics: Audio: Amplification: Vacuum Tubes  (77)
• Business: Electronics and Electrical: Components: Vacuum Tubes  (48)
• Recreation: Radio: Amateur: Boatanchors  (647)
• Recreation: Radio: Amateur: Boatanchors: Tubes: Data  (28)
• Science: Technology: Electronics: Audio and Video  (44)

• Dr. Tube - Tube amp schematics, tube datasheets and other tube related technical info.
• Duncan's Amp Pages - Resources for vacuum tubes. A data sheet data base for tubes. SPICE models for vacuum tubes, and software available for download.
• Eimac's - Design basics, care and feeding of power grid tubes and beam power tubes.
• Frank's Electron Tube Pages - Vacuum tube, vintage radio and other electronics information. Tube data sheets and pinout.
• Glowbugs - Vacuum tube circuits, some theory, manuals, and calculators.
• The Invention of the Vacuum Tube - History of vacuum tubes.
• JMH's Virtual Valve Museum - A collection of pictures and information of old, unusual and unique vacuum tubes.
• Mike's Electric Stuff - Antique glass and vacuum stuff, for electronics and high voltage.
• RadioPistoia by Pierluigi - Audio tube amplifier project. European tube number guide. Links to other tube sites. [English, Italian]
• Rf Power EXchange - RF power tubes and transistors, large inventory.
• Russian/Soviet - Tube factories and their logos.
• Shortwave Transmitter Tubes - A service from TDP with links to and information about the manufacturers, rebuilders and distributors/suppliers of tubes. An extensive list of data sheet sources.
• Svetlana Applications Notes - Application notes on the care and feeding of Svetlana tubes, mostly for high power service.
• TechInfo_2 - Vacuum tube equations, design and technical information.
• Triode Electronics, Inc. - Tubes and parts for hi-fi, radio and guitar. Tube data and amp schematics, links to tube amp information.
• The Tube CAD Journal - A monthly webzine devoted to vacuum tube circuit design and understanding.
• Tube Datasheet Database - Datasheets for about 3,000 vacuum tubes.
• Tube Rebuilders - Technical data, theory, trouble shooting information for high power tubes.
• Tubeopedia - A wiki encyclopedia of information on vacuum tubes and related topics including equipment that uses tubes, circuits, theory, and companies.
• The Tubes and Valves Online Database - European electron tube charts with characteristic data, basing diagrams, and application info. Includes Russian types.
• Vacuum Tube FAQ - How to use them and how they work. One of the more accurate vacuum tube FAQs on the net.
• Vacuum tube FAQ - How to use them and how they work. List of tubes and what they are used for.
• Vacuum Tube Index - Vacuum tube resources for students and more advanced users.Everything from fundamental techniques to SPICE simulation.
• Vacuum Tube Valley - All about vacuum tubes. Tube audio amp kits.
• Vacuum Tubes - N9TEW is supplier of vacuum tubes for ham, audio and antique radio purposes.
• Vintage H.H. Scott Hi-Fi Stereo Archive - Information on vintage H.H. Scott (vacuum tube) consumer high fidelity audio products produced from 1946 through 1966. Includes schematics.
• World Tube Audio Portal - Audio tube related link list, forums and newsgroups, tube amplifier collection and tweaking. Audio amplifiers that use tubes. Tube replacement list included.