Just a thought......

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Posted by vinnie2 (A) on August 10, 2015 at 18:09:43

In Reply to: back in the saddle again...... posted by vinnie2 on August 10, 2015 at 17:13:59:

The only two places the two bread boards are connectred is through the shared B+ and through the RCA lines going from and to the 91a clone. Seems like it would almost have to be one of those, but darned if I know how. There is only a coupling cap separating the B+ from the input to the grid on each tube. Could signal be sneaking across from one channel to the other via the B+?
I hooked my 76 preamp back up to the 91a to double check, and it does not have the same problem.

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Follow Ups Full Thread

Topic - back in the saddle again...... - vinnie2 17:13:59 08/10/15 (16)

final update - vinnie2 07:38:13 08/12/15 (1)

RE: final update - drlowmu 10:02:15 08/12/15 (0)

well I be damned ......... - vinnie2 05:51:19 08/11/15 (8)

RE: well I be damned ......... - Garg0yle 08:47:16 08/11/15 (0)

RE: well I be damned ......... - Triode_Kingdom 06:34:51 08/11/15 (6)

RE: We have "Skycraft" close by - deafbykhorns 17:23:03 08/11/15 (1)

RE: We have "Skycraft" close by - drlowmu 10:07:26 08/12/15 (0)

RE: well I be damned ......... - Eli Duttman 09:09:28 08/11/15 (2)

RE: well I be damned ......... - Triode_Kingdom 12:53:29 08/11/15 (1)

RE: well I be damned ......... - Eli Duttman 13:04:15 08/11/15 (0)

RE: well I be damned ......... - vinnie2 07:00:04 08/11/15 (0)

Just a thought...... - vinnie2 18:09:43 08/10/15 (0)

RE: Where is the cap coupling? - deafbykhorns 17:35:54 08/10/15 (3)

opps - vinnie2 18:06:15 08/10/15 (2)

RE: opps - Garg0yle 18:25:03 08/10/15 (1)

RE: opps - vinnie2 04:04:26 08/11/15 (0)

Follow Ups

Just a thought...... - vinnie2 18:09:43 08/10/15 (0)

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