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 Valve Data
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 Return to top of page · Post #: 1 · Written at 3:35:52 PM on 18 February 2010.
Kevin's Gravatar
 Location: Somers, VIC
 Member since 18 February 2010
 Member #: 623
 Postcount: 4

After a lifetime in the radio/electronics industry (Astor, Byer, Rola etc) I am now contemplating restoration of a 1930s radiogram. The job would be easier if I had not thrown out all my old valve books. I am sure that somewhere is data on the old RCA number series valves- 56, 47, 80 etc.
Regards


 
 Return to top of page · Post #: 2 · Written at 6:47:33 PM on 18 February 2010.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 4178

See "Franks Electron Tube pages" http://www.tubedata.info/ or search for it. There are others.

Do be aware that one of the American links on that, had, the last time I went hunting, been hyjacked by a porn site.

47 is an output pentode, 80 is UX4 version of 5Y3, 56 is an AF triode (6P5 , 76) 47 is a 2.5V filament type & 56 2.5V Heater type 47M is a heater type.

Marc


 
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