davohilts Posted April 23, 2013 Share Posted April 23, 2013 Hello, I'm looking for a schematic for my GA9 which has a 10" speaker in a tweed cab and 12AX7 preamp tube, 2-6V6 power tubes and a 5Y3 rectifier. Any help would be great. Serial number is 17272. thanks, Dave Link to comment Share on other sites More sharing options...
BobB Posted May 19, 2013 Share Posted May 19, 2013 A great resource for schematics is www.schematicheaven.com. Link to comment Share on other sites More sharing options...
davohilts Posted May 19, 2013 Author Share Posted May 19, 2013 Thanks BobB, As with some of my Gibson amps from the 50-early-60's schematics don't always match the amp. My Ga9 has a 12AX7 preamp and the published schematics I've found show a 6SJ7 in the preamp position. I think my amp is stock and I'm proceeding with the repair hoping for the best. It would be nice to find a matching schematic with voltages but so it goes! Dave Link to comment Share on other sites More sharing options...
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