That FIXED it. 47V 1W ZR across both of the bias supplies. I have the second amp and will tack in 1 ZR where the 56k Rs meet and see what the difference is and report back.
A warm welcome to tube amp modding fans and those interested in hi-fi audio! Readers of Kevin O'Connor'sThe Ultimate Tone (TUT) book series form a part of our population. Kevin O'Connor is the creator of the popular Power Scaling methodology for amplifiers.
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