output cap bleeder resistor looks a little burnt but tests ok

sbelyo · 2470

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Offline sbelyo

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on: December 19, 2011, 10:08:22 AM
While inspecting my crack for another problem I noticed that one of the bleeder resisters for the output caps lookeda little toasted, but it measured fine.

Any thoughts on what would cause that?


Offline Grainger49

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Reply #1 on: December 19, 2011, 11:05:39 AM
There should never be a lot of voltage there, and therefore very little current to cause it to burn.  Could it be from installation, the soldering iron getting to close?


Offline sbelyo

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Reply #2 on: December 19, 2011, 12:39:59 PM
no, it was pristine when I built it.  The amp functions normally and the offset was within the limits.  Just thought it strange when I saw it


Offline Grainger49

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Reply #3 on: December 20, 2011, 01:20:10 AM
Then clip on your meter leads and turn on the amp.  See what kind of voltage gets across this resistor.  Post your results.


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