[Amps] 3CPX800A7

Charles Bibb zedkay at telepak.net
Wed Feb 11 10:36:57 PST 2009


Need a little info guys:

I found the data sheet for the 3CPX800A7 at the CPI/Eimac website, 
but this data sheet looks as though a few things have been left 
off.  They say the tube is "intended for use in zero bias class B 
amplifiers in pulsed radio frequency applications".

However, if I were using it in a grounded grid application, would I 
not bias it?  I don't see any data on bias voltage.  What is typical? 
and what should the zero-signal (idle) anode current be?  Also, what 
is the typical maximum grid current?

My first homebrewed amp (now sitting on the shelf) used a single 
3-500.  The HV supply transformer loafed along with one 3-500, so I'm 
thinking of a conversion to this tube with not than many modifications.

Can anyone point me in the right direction for more detailed specs on 
this tube?

TIA,

Charles - K5ZK  




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