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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: Hold them closer to the monitor................ posted by Dingojazz on June 4, 2005 at 23:44:39:
It's all in fun. If the tubes have acid etched codes near the bottom like Mullard or Amperex tubes these links can help identify who, what, when and where.It's all in fun. If the tubes have acid etched codes near the bottom like Mullard or Amperex tubes these links can help identify who, what, when and where.
*) Philip, Valvo & Mullard Valve Coding:
http://www.cs.helsinki.fi/u/oheinone/valves/pvm-coding.htmlTube Numbering explained:
*) Ã…ke's Tube Numbering:
http://w1.871.telia.com/~u87127076/tabeller/index.htm
*) Tube Numbering Systems (Frank's site)
http://home.wxs.nl/~frank.philipse/frank/tubnum.html
*) Tube Numbering (MachMat's Site): http://www.machmat.com/info/index.htm
*) Russian encoding system: http://www.arrakis.es/~igapop/russianotes.htm
*) Coding systems: http://www.arrakis.es/~igapop/referenc.htm
*) Phillips factory and tube codes: http://www.triodeel.com/images/philipstubecodes.pdf Note that all Philips subsidiary companies (Mullard, Valvo, etc) and all factories that made tubes under Philips license used these codes (Ei, Toshiba, Siemens, etc) so it's not limited to European Philips tubes.PDF file.
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Follow Ups
- This might help ID the British Tubes if they have etched codes. - eargasm666@yahoo.com 08:16:27 06/05/05 (2)
- Arcana - Dingojazz 14:11:39 06/05/05 (1)
- Research findings - Dingojazz 15:12:26 06/05/05 (0)
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