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Old 1st Jan 2012, 1:44 am   #1
mrmagnetophon
Retired Dormant Member
 
Join Date: Sep 2010
Location: Ohio, USA.
Posts: 757
Default AKG C60 valve mic

I've been working on my AKG C60 microphone. Everytime I attempt to use it it just hums badly, all you can hear is oscillation, I've been over the schematic 1000 times and everything is there. The preamp is fine in the piece I am using it with. Any one know of this issue?

Chris
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