[AMPS] tube compatability

Thu, 20 Nov 1997 07:17:51 +0000

> To:            amps@contesting.com

> is a 3cpx800a7 the same tube as the 3cx800a7 (difference being the "p").
> and can 3cpx800a7 be a replacement for the 3cx800a7 in my titan amp?
> thanks....Steve

Same tube in this case Steve, but better testing.

Be sure to add a grid over-current protection circuit to your amp. If 
it does not have one, or you will eat up the new tubes.

A fuse is NOT enough, nor is a warning light. You need something that 
quickly knocks the Titan off line if the Ig ever gets over 50 or 100 
mA... even for a brief instant.

73, Tom W8JI

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