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Old 24th September 2010, 10:25 AM   #1
5u4 is offline 5u4  United States
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Default Gibson PA Amp

Have a old Gibson PA amp that needs repair. No serial or model # anywhere, maybe a prototype or something? Has 2-5881, 1-12AX7, 1-12AY7 , 1-12AU7, 1-OA2 & SS rectified. Looking for schematic or any other info you might have. Thanks.
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Old 26th September 2010, 11:55 AM   #3
5u4 is offline 5u4  United States
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Looked at a few of the schematics there, but didn't find anything similar to what I have. With no model #, not sure what to look for. Went to another web site that lists the tube compliment of varoius Gibson amps & didn't find anything with the exact tubes this amp uses.
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Old 26th September 2010, 02:44 PM   #4
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can you post a picture? Folks here will jump in.
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