Gibson Schematics

2 thoughts on “Gibson Schematics”

• Hi, I was looking through your gibson amp schematics and noticed that the last one you have listed is actually and Ampeg amp. I know you have Ampeg schematics listed on a separate page and that the GV-22 (this is the amp you have the schematic listed on the Gibson page)is not on the Ampeg page.

  The GV-22 is and amp from approximately 1969 and ran for a few years after. It is basically a Geminii circuit from earlier days with a bit more voltage on the plates so there is a bit more headroom. This amp came out at the time Unimusic took over Ampeg. It had the black tolex with the silver type grill cloth, 2 12 inch speakers, 2 channels, one with reverb, tremolo and vibrato. Both channels have treble and bass boost. Like many Ampegs this amp has the Baxandall tone circuit. This amp came stock with 6l6 power tubes which is a change from the earlier Geminii circuits which employed a few different power tubes over the years. It is a pretty nice sounding amp.

  I am sure there are some who would find it helpful to get the GV-22 schematic. Your site is nice because you have the original schematic from Ampeg as well as one drawn by someone else.

  Thanks for your time,

  Michael Barnett

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• Hi,
  I have, in my shop, a Blonde Gibsonette GA 8. That is on the chassis face..The amp has 2 6V6’s, 1-12AX7 and 1-5Y3.
  In between the 6V6’s is a porcelain socket that would be for a cap…Of all the GA 8 schematics I have looked at none show this cap socket….Can you help me figure out what is this amp even though it has GA-8?
  Thanks for your time.
  Ron

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