New Life for an Old Amp

What your calling a bright cap is what most people refer to as the "tone suck circuit" of the old Gibson amps.
The Gibson tone stack is unlike any other amps.
Seth Lover actually help design some of the Gibson amps before going to Fender. So he tailored the tone stack for humbuckers.
Ha ha… I just looked at a (crappy) schematic of the GA-15, and I don't have a clue. My head hurts now, too!
 
So what I am seeing is the BR series of Gibson amp were built by Barnes & Reinecke.
That explains the nomenclature for those amps, but does not mean they built all the Gibson amps.

I always believed that B&R designed the amps but that they were built by Gibson. I've seen many an old Gibson amp that claimed to have been built in Kalamazoo, but B&R were/are in Chicago.
 
I always believed that B&R designed the amps but that they were built by Gibson. I've seen many an old Gibson amp that claimed to have been built in Kalamazoo, but B&R were/are in Chicago.

There is an interview floating around with Seth Lover, and he talked about helping to design Gibson amps before going to Fender.
Gibson has amps BR-1 through 9, I have no doubt the they were at least designed by Barnes & Reinecke.
 
There is an interview floating around with Seth Lover, and he talked about helping to design Gibson amps before going to Fender.
Gibson has amps BR-1 through 9, I have no doubt the they were at least designed by Barnes & Reinecke.
Quite a bit of history on Gibson amps in this thread.
My buddy Sal ‘s father had 2 amps in a outdoor shed, and when Sal got his drum kit his dad brought the amps out for us to use (destroy) they both needed a tune up and new tubes, but at our age
16-19 we had no idea what to do with them but to turn everything to 10, one was a fender, and I liked that one the best
 
Let's get clear on some history and info...: Ted McCarty joined Gibson in 1948. TM became Gibson's vice-president in 49, and president in 50. Seth Lover was already involved with Gibson before Ted joined Gibson. Seth Lover was hired by Gibson in the early 40s to basically troubleshoot Gibson amps made by a Chicago based amp manufacturer. In 1948, Gibson released a new line of amps, the GA series, that would be build in-house at their Kalamazoo factory. Seth Lover had a lot of input into the designs of the in-house amps. Some of the cabinets for these amps were outsourced. The in-house built GA series amps were discontinued in '66 or '67 during the same time that Seth Lover and Ted McCarty left Gibson. The Norlin era started in '69.
 
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