My parallel stereo single ended triode is now ready :)

[Valvepower]

Hello,

I must have missed this thread whist I was taking some timeout from the forum for various reasons…

Anyway, looks a cracking build. I’ll have better peruse of the thread next week.

Regards
Terry

[kalee20]

Good and though-provoking work again, Gabriel!

Originally Posted by Gabe001

The best performing was this one, followed by ecc83 in parallel, with plate to plate feedback. Interestingly, the cleanest signal at the el34 grid doesn't translate to lowest overall distortion!

That's the NFB working for you though... Given that the EL34's distort a bit (they're handling the largest signal after all), if you want a distortion-free output then the signal on the grids have to be pre-distorted in the opposite sense. And that's what the NFB contrives for you!