addendum - Lew - OTL Asylum

addendum

Posted by Lew (A) on October 3, 2005 at 07:16:12

In Reply to: SUCCESS!! posted by Zenjabil on October 1, 2005 at 11:27:27:

The fact that you had success on your first try suggests to me that either you were very lucky to pick the one "bad" tube to exchange with a "good" one from the other side OR that all tubes are aged about the same on average, so that swapping one of the quartet allowed you to achieve balance at a slightly different point on the bias potentiometer. If anal, you can probably identify a truly dead or failed tube (which might be the basic problem) by pulling all tubes and balancing the amp with just one tube on each side, swapping tubes until you have individually tested each one. (You could even put a known good NOS tube on one side and test the 8 others against it, one at a time.) I suggest that before you do that you should label the tubes and take note of their present locations on the chassis, so that you can return them to those locations once you are done.

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Follow Ups Full Thread

Topic - DC offset dial at extreme on M60 MkII.2 - Zenjabil 11:36:17 09/29/05 (16)

SUCCESS!! - Zenjabil 11:27:27 10/01/05 (2)

addendum - Lew 07:16:12 10/03/05 (0)

Relax.. - Lew 07:08:50 10/03/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - Hot TUBE Swapping - Mike Mount 18:52:55 09/30/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - docs 13:19:21 09/30/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - bmotorcycle2003 12:49:41 09/30/05 (1)

Re: DC offset dial at extreme on M60 MkII.2 - Zenjabil 14:09:49 09/30/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - Lew 07:45:51 09/30/05 (2)

Re: DC offset dial at extreme on M60 MkII.2 - acres verde 08:22:43 09/30/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - Zenjabil 08:01:15 09/30/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - docs 17:24:50 09/29/05 (3)

Re: DC offset dial at extreme on M60 MkII.2 - Zenjabil 18:44:07 09/29/05 (2)

Re: DC offset dial at extreme on M60 MkII.2 - docs 04:36:28 09/30/05 (1)

Re: DC offset dial at extreme on M60 MkII.2 - Zenjabil 07:59:25 09/30/05 (0)

Re: DC offset dial at extreme on M60 MkII.2 - BAJ 14:17:12 09/29/05 (1)

Re: DC offset dial at extreme on M60 MkII.2 - Zenjabil 18:45:02 09/29/05 (0)

Follow Ups

addendum - Lew 07:16:12 10/03/05 (0)

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