Head scratcher: 5150 combo bias mod screweyness

[Enzo]

I think back when I offered the transformer method just as another alternative. Myself, I'd probably turn it into a tripler.

[g1]

No problem with the transformer or the tripler. The only reason I mentioned the cap-coupled is that transformer or tripler require additional components (the OP mentioned adding a board).
Cap-coupled requires no extra components, actually reduces parts count by 1 (CR23). However, you would have to figure out the best value to replace C65 with. And maybe even change the AC feed to be from the HV bridge instead of from LV bridge.

[drewl]

Hmmm, I stand corrected. The combo is different from the head.