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why so much emphasis on SE triode? - push-pull wo nfb can be excellent

Not to be too far off subject - there seems to be quite an emphasis on SE triode power amps in the marketplace - they can be beautiful but I'm not fully convinced that they're 'better' than push-pull triode (without loop negative feedback) for high efficiency speakers.

My 85lb homemade parallel 2A3 amp using IT coupled 5842Q and multiple CLC filtered supplies is pretty decent but I've heard good stuff from my parallel push-pull 6BX7 mod Eico ST-70 too (6BX7 vak~300vdc)- plus better damping due to more usable primary L.


Freddy



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Topic - why so much emphasis on SE triode? - push-pull wo nfb can be excellent - freddyi 01:38:37 05/23/01 (23)


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