Jim,

Whatdo you think the results would be if you took an AC30 but added negative feedback or removed the negative feedback from a blackface Fender?

My Gries 5 is a single ended class A blackface champ style with a 6V6 but no negative feedback. (You can also dial out the tonestack for a Tweedy vibe).

BigG's Swart is a Tweed-type circuit with no negative feedback, but it does have a switch allowing one to switch in some negative feedback.


As far as the original question, I thought that it was common knowledge that EL84s break up sooner than 6L6s regardless of transformer or of whether there was negative feedback. Is this not so?