Thread: 3fp7 2nd anode
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Old 10-14-2025, 06:15 PM
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timmy timmy is offline
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Quote:
Originally Posted by dtvmcdonald View Post
That's correct ... AC goes into the tripler. As another person mentioned, potted
triplers for horizontal frequency will not work. You need film caps and 2 kV or more diodes.

Oh yes! IF you look hard you can find used HEathkit scopes and modulation monitors that will
have the necessary stuff in them. These may or may not be cheap.
I do have a hv generator that produces 2k and this would probably work well. This is for a 3fp7 tube that I may attempt to fit in a pilot tv it would be better then a green tube. And it just has to have 2k present for the tube to light bright there wouldn’t be any draw. But the hv generator works on 3.7v dc so how to get that voltage from a pilot to run this would be interesting.
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