GK 800RB Schematics for initial plus 2 redesigns - diyAudio
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Old 28th December 2011, 01:33 PM   #1
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Join Date: Dec 2011
Default GK 800RB Schematics for initial plus 2 redesigns

I have been dealing with some noise with my 800rb and so I have done some research. I found some schematics on this site, but I also found a service memo that got me a bit confused as the pots didn't seem to match what was inside my amp.

So, after a bit more looking I found that there have been a few redesigns for this amp. I have attached schematics from 1982, 1991 and 1992. I haven't looked at the differences between 91 and 92, but 82 is notable as it uses a single pot for the hi/low crossover whereas the 91 and 92 use 2 pots ganged together.

Hope this helps someone. It sure helped me.
Attached Images
File Type: jpg 82 - power amps.jpg (303.4 KB, 52 views)
File Type: jpg 82 - power supply.jpg (260.6 KB, 46 views)
File Type: jpg 82 - preamp.jpg (337.9 KB, 44 views)
File Type: jpg 91 - power amps.jpg (333.5 KB, 43 views)
File Type: jpg 91 - power supply.jpg (192.2 KB, 41 views)
File Type: jpg 91 - preamp.jpg (288.1 KB, 24 views)
File Type: jpg 92 - power amps.jpg (343.5 KB, 23 views)
File Type: jpg 92 - power supply.jpg (193.6 KB, 21 views)
File Type: jpg 95 - preamp.jpg (356.1 KB, 23 views)
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