Gibson PA Amp

5u4 · 24th September 2010, 10:25 AM

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.

firechief · 24th September 2010, 04:30 PM

Dou you know about schematic heaven?
Schematic Heaven - FREE Amp Schematics Tube Amp Schematics Valve Amp Schematics Effect Schematics Effect Pedal Schematics Guitar Amp Schematics Bass Amp Schematics Fender Amp Schematics Marshall Amp Schematics Gibson Amp Schematics Vox Amp Schematics

5u4 · 26th September 2010, 11:55 AM

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.

firechief · 26th September 2010, 02:44 PM

can you post a picture? Folks here will jump in.

24th September 2010, 10:25 AM	#1
5u4 diyAudio Member Join Date: Nov 2005 Location: N of Tampa	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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24th September 2010, 04:30 PM	#2
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	Dou you know about schematic heaven? Schematic Heaven - FREE Amp Schematics Tube Amp Schematics Valve Amp Schematics Effect Schematics Effect Pedal Schematics Guitar Amp Schematics Bass Amp Schematics Fender Amp Schematics Marshall Amp Schematics Gibson Amp Schematics Vox Amp Schematics

26th September 2010, 11:55 AM	#3
5u4 diyAudio Member Join Date: Nov 2005 Location: N of Tampa	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.

26th September 2010, 02:44 PM	#4
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	can you post a picture? Folks here will jump in.

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