03-06-2015, 02:17 PM
Ron,
Thanks for the direct coupled clarification on the output board. Still strongly encourage you to check for DC voltage at zero volume on the speaker terminals. A real good indicator for biasing on the outputs. It they aren't balanced properly much more clipping occurs and the transistors run much hotter.
At the risk or being "reprimanded" again for links to other forums you may want to prowl around at this one which is just for vintage Fisher audio gear.
http://www.audiokarma.org/forums/forumdisplay.php?f=172
Thanks,
Mike
Thanks for the direct coupled clarification on the output board. Still strongly encourage you to check for DC voltage at zero volume on the speaker terminals. A real good indicator for biasing on the outputs. It they aren't balanced properly much more clipping occurs and the transistors run much hotter.
At the risk or being "reprimanded" again for links to other forums you may want to prowl around at this one which is just for vintage Fisher audio gear.
http://www.audiokarma.org/forums/forumdisplay.php?f=172
Thanks,
Mike
Cossor 3468
GE 417A
Philco 118H
Radiola 17/100
Scott 800B6
Silvertone 6130
Stromberg 535M
Truetone D1952