Help for a Sherwood S-5000 biased too hot!

Vintage Asylum

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I was just checking some voltage in my Sherwood S-5000 (that has a bit hoot power transformer, as I wrote some days ago on this forum) and I found the following on the output tubes 7189/6BQ5:
- pin 7 (plate) I found 380V (the schematics says 415)
- pin 9 (grid 2) I found 375V (schematics: 410V)
- pin 2 (grid 1) I found -13V (schematics: -20)
What should I deduct? The only thing I understand (as Im a newbie) is that it's definitely biased too hot.
What should I do? Any hint on how can I bring back the bias in the safest -20 (or better -22?) range? Any resistor to replace?
Thanks
Raul

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Topic - Help for a Sherwood S-5000 biased too hot! - Raver 07:56:16 12/28/03 (1)

Addendum - Raver 08:20:59 12/28/03 (0)

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