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previous: Marc Ampy;search the net and you... -- 10/28/1999 3:05 AM View Thread

Re: 6973 pentode output power tubes?

10/29/1999 11:28 AM
Graywater
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Re: 6973 pentode output power tubes?
Ampy,  
 
The 6CZ5 is electrically identical to the 6973 with two small exceptions. The plate dissipation is slightly lower (10 vs 12 w) and the pinout is slightly different - the 6973 has two screen grid pins (1 & 8) where as the 6CZ5 only has one (1) so you have to ensure that the screen grid supply is connected to pin 1.  
 
The 6973 needs more grid drive than the 6BQ5 and you may have to drop the signal a bit if you convert.  
 
GW

 
Replies:
MKB Just curious...Does... -- 10/29/1999 4:31 PM