|[AMRadio] Re:Reactor Wanted|
k4kyv at charter.net
Tue Nov 13 04:37:34 EST 2007
> It's interesting tho... I don't think I've ever heard of a rig that runs
> much higher B+ on the modulator plates than it runs on the FINAL.
> Mr. T., W9LBB
Mine does. Runs fixed power supply output of 2600 volts on the modulator,
and the rf final power supply is fed through a variac, adjustable from 0 to
2000 volts maximum. I normally run it somewhere between 1600 and 2000
volts. Been running it that way ever since I built the rig in 1970.
With the 1.55:1 modulation transformer turns ratio, I get plenty of headroom
and clean audio, even at maximum modulation peaks.
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