LTSpice/SwitchCADIII seems compatible with PSpice tube models.
You can find most of what you need, search for DuncanAmps...
I've simm'd similar arrangement in push-pull, I can say that it is
unnecessary to have both UL, and a cathode winding feedack.
One or the other NFB is sufficient. Abusing both lowers the gain
so much, you may need G1 drive that clips into grid conduction.
Then again, that sim was run for 6L6...
If you want my zip file for reference, its over in Ray-Moth's recent
Push-Pull Pentode thread. At least you need my beam tet symbol,
allready configured for PSpice. The default Pentode in LTSpice has
one too many pins, and the wrong net pinout to plug directly into
Duncan's models.
You can find most of what you need, search for DuncanAmps...
I've simm'd similar arrangement in push-pull, I can say that it is
unnecessary to have both UL, and a cathode winding feedack.
One or the other NFB is sufficient. Abusing both lowers the gain
so much, you may need G1 drive that clips into grid conduction.
Then again, that sim was run for 6L6...
If you want my zip file for reference, its over in Ray-Moth's recent
Push-Pull Pentode thread. At least you need my beam tet symbol,
allready configured for PSpice. The default Pentode in LTSpice has
one too many pins, and the wrong net pinout to plug directly into
Duncan's models.
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