Check out how Henry does this with their 8-K Ultra.
Their tube socket and non-metallic chimney cuts a bunch
of stray C out of the picture. You don't need any tune C,
just use a roller coil or devise a way to squeeze the fixed
coil in and out. With the proper tuned input circuit, you should
see 5k + suds with 200 watts drive.
(((73)))
Phil, K5PC
Subject: [AMPS] 3CX3000A7
>
>
> I need some advice from the experts. I have a recently brought back to life
> GG 3cx3000a7. Its running on a higher plate voltage, approximately 6700KV.
> When tuning up on 10 meters with a TS 440 into a dummy load, with
> approximately 70 watts drive I am only seeing 200 watts on the Bird. What's
> odd is the Jennings 10-370pf plate tuner is backed all the way out to the
> minimum capacitance and that's where It tunes for max output. I thought it
> would tune around at least 25pf but its backed all the way out. What should
> I expect to see with say 100 watts input provided tank is right?
>
> KRS
>
>
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