Steve Bookout wrote:
> (With plate current dipped) As I increase drive, the grid current goes
> up. I tweak the C2 cap, grid current goes down; RF output goes up. Maybe
> touch up the 'tune' cap a bit. All as expected.
> At some point, when drive is increased and grid current goes up, no
> adjusting of the C2 cap will cause this to be transferred and seen in the
> RF output.
> In the past, as probably most of have seen, this condition happens when you
> run out of C2, at which point you would parallel a bit of extra fixed
> capacitance, but I have plenty of C2
> I can not make the extra RF on the input, be amplified and appear on the
> output. Drive goes up; grid current goes up; tubes go RED; output stays
> the same.
What does the plate current do? Do you have numbers for current vs drive
power?
Steve
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