RE: Mills MRB-12 failure

SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

In Reply to: RE: Mills MRB-12 failure posted by drlowmu on March 8, 2015 at 10:29:38:

There is one thing that may have caused the failure. There is a fat Mogami signal cable that runs from the back of the amp to the input pin of the tube, past those resistors. The insulation of that cable at one point was touching that 20k resistor as it is apparent from the burn marks on the cable. It is possible that PVC material somehow penetrated the silicon skin of the resistor and managed to "incinerate" the resistive element or contaminate the end cap causing the resistor to fail.

Usually when resistor burns you can definitely tell that it had burned, the visuals should be there. In my case the resistor looks perfectly normal, no cracks, spots, discoloration or smell. Need to do a detailed autopsy. Mystery!

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Follow Ups Full Thread

Topic - Mills MRB-12 failure - Abacus Music 07:27:50 03/08/15 (10)

RE: Mills MRB-12 failure - Abacus Music 12:13:31 03/20/15 (0)

RE: Mills MRB-12 failure - mach1 09:59:15 03/11/15 (0)

RE: Mills MRB-12 failure - Caucasian Blackplate 11:38:10 03/08/15 (3)

RE: Mills MRB-12 failure - Abacus Music 11:50:41 03/08/15 (2)

RE: Mills MRB-12 failure - Caucasian Blackplate 11:52:17 03/08/15 (1)

RE: Mills MRB-12 failure - Abacus Music 11:57:44 03/08/15 (0)

RE: Mills MRB-12 failure - drlowmu 08:41:50 03/08/15 (3)

RE: Mills MRB-12 failure - Abacus Music 08:53:13 03/08/15 (2)

RE: Mills MRB-12 failure - drlowmu 10:29:38 03/08/15 (1)

RE: Mills MRB-12 failure - Abacus Music 11:05:41 03/08/15 (0)

Follow Ups

RE: Mills MRB-12 failure - Abacus Music 11:05:41 03/08/15 (0)

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