[AMRadio] Screen Regulator Circuits, 20a, etc.

[Brett Gazdzinski]

Jim,
The circuit I built is in the red or yellow Bill Orr books,
uses octal tubes, including the big triode pass tube (6sa7??).

I have the output metered on the front panel of the modulator, and
it ALWAYS stays at what I set it at (350 volts).

Crazy, but I just pulled some (used) tubes out of the junk box
and plugged them in, and the circuit has been working without problems
for well over 10 years now, without a single crap out!

I don't know about the regulation, the meter never moves, but I don't
think the 4x150 screens draw a lot of current.