Jimmie D wrote:
I am trying to build a small class C RF amp for 160 AM. The amp is to be
plated modulated and I have about 12 watts of audio available. I have built
amps before(30 years ago) but I have never built one around a modulator,
previously I built the modulator to suit the amp. Any help with tube and
voltage selections would be greatly appreciated.

With only 12 watts of audio available, I would be
tempted to use grid modulation on a pair of 6146's.
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73, Cecil http://www.w5dxp.com