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Gibson GA9


davohilts

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  • 4 weeks later...

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

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