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Old 2nd Nov 2017, 1:26 pm   #3
Nuvistor
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Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,433
Default Re: looking for help please with 1964 Trio W-41 stereo valve amp

I have not seen that before, always something to learn.

V1 and V2 have a DC heater supply and are part of the cathode bias components for the 4 x EL84’s.

Yes do has Graham suggests, I am just commenting that I had not seen this before, must have led a sheltered life.
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