What plate voltage are you running?
Ken W2DTC
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----- Original Message -----
From: <K7xq@aol.com>
To: <amps@contesting.com>
Sent: Tuesday, September 04, 2001 7:45 PM
Subject: [AMPS] AM-6155 Output Power / Plate Current Instabilty ( Drift
Upward )
>
> Has anyone experinced the following problem with thier modified AM-6155 at
432 MHz ??
>
> 1) At higher output power levels and a fix input power, the power output
and Plate current drifts UPWARD to a point where it pegs the Current meter
( @ 500 ma )and still only 250 watts output ??
>
> The modifications includes the air wound 5 turn coil just to the inside of
the cavity at the anode side.There was a article written which actually
states that this condition is a real condtion that can occur but I do not
know how to stabilize the output and current and still get 300 watts
out.This occurs when there is only 10 watts applied to the input so i dont
think the grid is overdriven.
>
> Jeff K7XQ
>
>
>
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>
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