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In Reply to: RE: PP output transformer with UL for circlotron?? posted by Tube747 on April 23, 2016 at 13:39:40
You're right.
Pentode operated with the g2 voltage cross coupled from the opposite bank plates.
So just tape up the UL wires.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Follow Ups:
An drawback? II think the output power would be lower, right?
From not using the UL connections?No.
The power you will get will be based on the tube used, the way it's being used (in this case pentode in a circlotron circuit), plate to cathode voltage and idle current and the impedance of the output transformer.
Pentode operation of a pentode yields the most power vs. triode or UL operation of a pentode. (but not necessarily the lowest harmonic distortion)
Note, the output transformer doesn't care if the UL connections are used or not. The UL connections are for the sake of the operation of the tube, not the transformer.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 04/23/16
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