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In Reply to: RE: Yamaha C2A -- anyone intimately familiar with this preamp? Repair advice needed... posted by fredtr on April 14, 2017 at 13:23:01:
...you may also want to narrow it down to a section and shotgun the section (that is, replace all the parts). Parts are cheap and time is expensive.
Also, examine and reflow the existing solder joints.
Finally, if you're working on a differential amp pair, the transistors should be matched. We had that issue in a Yamaha C-80. Solution required a $30 (ouch) matched pair of FETs if I recall correctly.
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Follow Ups
- Great Advice...and... - Lee of Omaha 10:50:11 05/02/17 (0)
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