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RE: Ultrapath

"Doesn't that mean whatever difference exists between the original output stage AC common (ground) and the new one (cold end of OPT) will now appear across the grid and cathode of the output stage?"

There was always a cap between the cathode of the output tube and ground.

The only change I can see is there are now two caps in series (the PS cap and the UP cap), instead of a cathode bypass cap, between the cathode of the output tube and ground.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"


Edits: 10/03/16
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