fini Posted November 3, 2002 Share Posted November 3, 2002 Is there a definitive list or chart for these? I see references to this all over the web, but nothing that allows me to tell what company manufactured what tube when. Someone here has got to know. fini Quote Link to comment Share on other sites More sharing options...
Deang Posted November 3, 2002 Share Posted November 3, 2002 http://www.triodeel.com/eiacode.htm You are right however, not much out there. www.audiotubes.com (Brent Jesse) does have all the date codes for Telefunken, but nothing else. Of course, if you emailed him about something specific -- he would probably know. Quote Link to comment Share on other sites More sharing options...
Clipped and Shorn Posted November 3, 2002 Share Posted November 3, 2002 fini, plough through these: http://www.valveandvintage.co.uk/pw/jun01.htm http://www.cs.helsinki.fi/u/oheinone/valves/pvm-coding.html www.triodeel.com/philipstubecodes.xls -c7s Quote Link to comment Share on other sites More sharing options...
Deang Posted November 3, 2002 Share Posted November 3, 2002 Clipped, where did you find the pic of the Bose engineers trying out the prototype of the new system their going to use to replace Acoustimass? Quote Link to comment Share on other sites More sharing options...
fini Posted November 3, 2002 Author Share Posted November 3, 2002 Yeah, those are some wild-ear cochlea suckers! Thanks for the links. Looks like my Baldwin 12AX7's were made by Sylvania, if I'm reading the code correctly: 31 12 26 The 12AU7's are Japanese, and are coded differently (1E). fini Quote Link to comment Share on other sites More sharing options...
Clipped and Shorn Posted November 3, 2002 Share Posted November 3, 2002 someone sent that image to me, I will have to ask where he got it and what the heck it is. 7s Quote Link to comment Share on other sites More sharing options...
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