> GM: My Clipperton-L has begun causing in-band static on 15m, whenever
> the STBY switch is turned to Operate. The noise varies with tune and
> plate controls, and is loudest when the amp is tuned for max output.
> No such noise on 20m; don't use it on other bands. Any ideas where to
> start?
What kind of tubes are you using? Some tube brands have a very
high cutoff voltage.
Clippertons make good oscillators on 15 and ten meters, because
they use 4 572B's in parallel and are not neutralized.
73, Tom W8JI
W8JI@contesting.com
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