Форум гитаристов

As amplifiers were originally developed, push-pull was seen as a great improvement: more power and less distortion. But those early amps were designed for theater sound, for the then-new “talkies”, not for musical purposes where those harmonics can become part of a magic expressive tonality. It’s interesting that some of the most expensive and sought-after “high-end” stereo power amps today are single-ended Class A using the same 300B Triode tube as those old movie theater amplifiers. And they’re revered for their “musicality”!

For 10 WATT operation the two 6L6s next to the 5U4 supply the single-ended Class A audio power as they are wired in parallel, not push-pull.