Thanks Bill, Carl and others. Yes - I obviously have something wrong here.
I have a couple suggestions on how to trace down the problem - and will
start hunting next week after the contest this weekend. I'll let you all
know what I find.
73 Wayne N1WR
> From: Fuqua, Bill L
> Sent: Friday, March 04, 2011 12:15 AM
> To: Robrk
> Subject: RE: [Amps] 4-1000 Bias
>
> I would find out why the there is a no-signal grid current.
> Something must be wrong with metering circuit or there is some RF drive
> but any sort of parasitic oscillation usually
> produces loads of plate current.
> If I recall at around 5.5kV or 6kV with zero volts bias and no drive
> the plate dissipation
> does get close to 1kW. Makes for a nice glow. But as soon as you provide
> some drive
> the plate glow drops indicating a decrease in dissipation.
>
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