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In Reply to: RE: Citation 12 Amp issue posted by rockpassion on December 08, 2016 at 22:17:06
Richard
This is a basic dual mono amp with some of the first FET outputs but it's an excellent amplifier. I assume you checked the fuse in the offending channel? If you did,the next thing we want to do is to see if we have the B+ rail voltage going to the output transistors which are mounted on the heatsinks.
Do that and get back to us.It should be 60vdc as I remember.Just check the good channel against the bad one.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Follow Ups:
The Citation 12 uses a pair of NPN BJT devices, not FETs.
It runs on about ±40V.
Scroll to last page ad look at the outputs.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Edits: 12/09/16
That's Nelson's modified Citation 12, the original was BJT.
Craig
Ah ok.It's been a few years since I've done one and didn't remember the details.
He needs to look at the fuses and then check the rail voltage as he may find a shorted output.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Edits: 12/09/16
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