Tubes in computers - numbers, please - test-drb@ccmp.vtda.org

11 Dec 2002

  William Donzelli wrote:
...
  Anyway, if any of you folks have information or
samples of old tube based 
 computing junk (modules, for example, or old unit-record stuff) - could I 
 bother you to tell me what types of tubes were originally installed? I am 
 looking for specific numbers, not just "dual triodes". 
  I have a few IBM plug-in (?logic?gate?) modules. 
  Module      Tubes
   AM-5       one tube - 5965(maybe "A") IBM Part# 317261
   CF-503     one tube - 5965 
   PW-505     one tube - 7044  IBM P# 124720
   CF-5       one tube - 5965(maybe "A") IBM Part# 317261
   TH511      two tubes, both 5696  
              top one IBM Part# 288626
              bottom one IBM Part# 288625

   Computer model number unknown
   And they all look similar to this:
http://dcoward.best.vwh.net/tubes2.JPG
 --Doug
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Doug Coward                
@ home in Poulsbo, WA

Analog Computer Online Museum and History Center
http://dcoward.best.vwh.net/analog
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