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Single Ended Triodes (SETs), the ultimate tube lovers dream.

Re: Pentodes (EL34, EL84, KT88, 6550, etc.) in SE triode mode suck!!

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I have been using a 6550 SET for many months while building my 300B amp. After all this talk I decided to mangle half my 6550 SET amp to take one of my ready and waiting Sovtek 300Bs and adjusted the bias accordingly. After one night of listening I was not that impressed. I will continue to listen and see if things get better but I can say that moving from 6550 PP ultra linear to 6550 SE triode was a MUCH MUCH more significant improvement than from the 6550 SE to the 300B SE. I do like the purple glow of the 300Bs though!


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