you guys have seen the "compact" circuit, right? It's the one where the phase inversion is done in the PP power output stage. So that the driver circuit is a straightforward single ended voltage amplifier which must simply swing the grid volts of the output tubes. Most commonly this voltage amp stage is capacitively coupled to the output stage though Keto posted a novel direct coupled "compact" circuit on this forum a long time ago.
Here is my question--- is there any reason that the compact would not also work if the output stage was a parallel push-pull (four tubes instead of two per channel)???
MSL
Builder of MagneQuest™ & Peerless™ transformers since 1989
