I have been driving to Örebro back and forth this weekend. Nothing beats being bored by endless miles of straight roads as a great opportunity to think about, develop and try out new ideas in your head.
I have been playing with the inverted "Triadtron" circuit: Aikido Cathode Follower & More Triadtron trying to simplify it. Inspired by Nelson Pass brilliant use of nice signal level transformers in simple Zen"ish" amplifiers (BAF2015 - F6 - M2 etc) I hope I can get a nice linear single stage push pull amplifier without any extra gain-devices.
In my circuit above the L1-2 L2-2 is the primary and seconday winding of the Edcor or the Jensen transformer. The secondary should be phase-reversed to the primary.
This is just a simplified schematic to show the general principle. There is no bias-circuitry in my schematic above. I would prefer depletion-mode devices (SIT) for the most simple and DC stable circuit possible, but it is doable with normal enhance mode devices too.
I have not seen this circuit used with solid state devices. Any comments or suggestions?!?
Is it worth testing?