In Reply to: RE: Dynaco Pas Hum posted by Rudes on May 30, 2020 at 05:08:41:
That's a big help. The designer probably assumed stock phono board, which has pin 9 grounded.
Leave unit powered off 10 minutes or so no chance of accidental capacitor discharge (shock). Check resistance from pin 9 on the phono board, to the connection marked ground. Do it for both tubes, have your volt/ohm meter set to the lowest resistance. If it measures open, I suggest you add a wire from either of the pin 9's to where it is marked ground (left side of board in picture).
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Follow Ups
- RE: Dynaco Pas Hum - fredtr 05/30/2007:06:36 05/30/20 (13)
- RE: Dynaco Pas Hum - Rudes 13:32:54 05/30/20 (11)
- RE: Dynaco Pas Hum - fredtr 09:49:31 05/31/20 (10)
- RE: Dynaco Pas Hum - Rudes 10:33:20 05/31/20 (9)
- RE: Dynaco Pas Hum - fredtr 10:52:04 05/31/20 (8)
- RE: Dynaco Pas Hum - Rudes 12:11:08 05/31/20 (7)
- RE: Dynaco Pas Hum - fredtr 13:18:58 05/31/20 (6)
- RE: Dynaco Pas Hum - Rudes 04:27:09 06/1/20 (5)
- RE: Dynaco Pas Hum - fredtr 07:26:46 06/1/20 (4)
- RE: Dynaco Pas Hum - Rudes 07:58:38 06/1/20 (3)
- RE: Dynaco Pas Hum - tubular.well 15:44:26 06/11/20 (0)
- RE: Dynaco Pas Hum - fredtr 09:52:55 06/1/20 (0)
- RE: Dynaco Pas Hum - fredtr 08:06:24 06/1/20 (0)
- RE: Dynaco Pas Hum - Rudes 08:20:05 05/30/20 (0)