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Re: schematics for 6C33 single ended OTL?

Posted by Ralph on July 12, 2006 at 10:06:43:
Hi Hans,
Not all OTLs have to be class AB. Its all in the biasing and plate voltage!
The Futterman 'totem pole' style output is push-pull and does not qualify as a Single-Ended OTL. Of course, once rid of the transformer there is no argument any longer for Single-Ended operation either, since Single-Ended amplifiers get their 'magic' from the lack of hysterisis loss in the output transformer. Once done with that, push pull can have the same 'magic' (low level detail).
Best Regards
-Ralph