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Vacuum Tubes - http://www.hamtubes.com/tubes/
N9TEW is supplier of vacuum tubes for ham, audio and antique radio purposes. |
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The Tubes and Valves Online Database - http://www.ginko.de/user/franz.hamberger/roehren/roehren.html
European electron tube charts with characteristic data, basing diagrams, and application info, includes Russian types. |
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Glowbugs - http://www.mines.uidaho.edu/~glowbugs/
Some excellent theory, vacuum tube circuits, manuals, intersting stories and information. |
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Vintage H.H. Scott Hi-Fi Stereo Archive - http://hhscott.com
This site promotes open sharing of information, understanding and historic appreciation of vintage H.H. Scott (vacuum tube) consumer high fidelity audio products produced from 1946 through 1966. |
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Russian/Soviet - http://www.ominous-valve.com/russtube.html
Tube factories and their logos. |
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Nixie and Dekatron tubes - http://pobox.com/~JasonHarper/Nixie.html
Some pictures of Nixie and other types of old and unusual vacuum glass tubes. |
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Dr. Tube - http://www.drtube.com/
Tube amp schematics, tube datasheets and other tube related technical info. |
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Heathkit Links - http://www.mods.com/heath-hifi/links.html
Quite a few good links to tube parts sources. |
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B and K 707 TUBE TESTER MANUAL - http://www.idalis.com/images/bk707.htm
A scan of a B and K 707 Mutual conductance tube tester. Includes procedures on use, calibration instructions, and schematic diagram. |
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Frank's Electron tube Pages - http://home.planet.nl/~frank.philipse/frank/frank.html
Data sheets, search, history, tube bases, and numbering systems, substitution list and an extensive link list. All you would need to know about vacuum tubes. |