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Hi all, Appologies in advance for the long winded post but I'm having trouble (or I think I am) with 2 PL 400 Series 2 amplifiers. I have 2 of them and they are both acting differently when I bring them up on a variac. Both had shorted output transistors (caused by apparent over tightening of...

Hi All, I just signed up here and not quite sure where to post my question about a Phase Linear MKII repair/verification of a mod I found. I'm rebuilding an PL 400 MKII and I can't remember where I found this mod and need some clarification, all I did was copy past it. If anyone has done this...