[AMPS] 4CX800 Idle Current a bit high

[Peter Chadwick]

Doug said:

>What is the preferred voltage to adjust to move it to 150ma?

Whatever it takes. The exact voltage will depend on the gm of that particular
tube: I'd expect somewhere around the -60 to -68 volt range. You adjust the bias
to get it right - unless you've a number of tubes in parallel, when it gets a
little more complicated.
Sorry I can't be more exact.

73

Peter G3RZP




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