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On Tue, 17 Feb 2015 21:13:31 -0500, Paul wrote:
>> I am guessing common cathode RF amplifier, a more standard way to do
>> it would be an adjustable bias supply and a clamp tube on the screen
>> grid. (6L6 or similar) look into any pre-1960 ARRL hand book.
REPLY:
A clamp device is a good idea but it doesn't have to be a tube. High
power, high voltage transistors are available dirt cheap anymore. It
will take a little extra circuitry to get the drive right, but that's
dirt cheap too. The hard part is the design.
Bill W6WRT
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