My Moscode again: What is the bias current? - diyAudio
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Old 14th May 2014, 11:43 PM   #1
diyAudio Member
Join Date: Aug 2008
Default My Moscode again: What is the bias current?

One of the Moscode modifying labs commented that a wavering dc offset would not be abnormal so I'll turn my efforts to the bias of the mosfets. Right now the 60 v rail is +/- 120 ma on each channel; this seems low. Is there a correct current standard for this amp?
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Old 15th May 2014, 12:01 AM   #2
esgigt is offline esgigt  Netherlands
diyAudio Member
Join Date: Dec 2013
I understand you own a MOSCODE 300, right? So do I, btw...

The bias current should be in that order, but I always understood that it is not very practical setting it. You could try Kaye Audio Inc: Repairs and Upgrades of Fine Tube Electronics by George Kaye for more info on the amp..

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Old 15th May 2014, 12:23 AM   #3
diyAudio Member
Join Date: Aug 2008
I don't think setting it is an issue; there is a pot for that. Have had a hard time getting Kaye to answer a call or email; I think he may have modded this unit some years ago.
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