Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Sonny ReVerb on August 22, 2023, 10:46:08 am

Title: Lost Gibson amp schematics recovered
Post by: Sonny ReVerb on August 22, 2023, 10:46:08 am
Interesting story  (https://www.guitarworld.com/news/gibson-lost-guitar-amp-effects-pedal-archive-found-ebay)

"Long story very short, we recovered the entire Gibson Brands amplifier and effects archive from 1936-1969... filled with schematics, blueprints, parts lists, work instructions, promo photos, frequency analyses, notes, memos, and more.”

Hopefully, these will find their way to us amp nerds...
Title: Re: Lost Gibson amp schematics recovered
Post by: PRR on August 22, 2023, 01:15:01 pm
Same Gibson who sues anybody making a triangular guitar and hints at a "V" shape?
Title: Re: Lost Gibson amp schematics recovered
Post by: Dave on August 22, 2023, 01:51:39 pm
I've worked on a few old Gibsons and Epiphones over the years. Interesting amps. Never even occurred to me that I might get sued, even when I gutted them (only the ones that were beyond repair) and rebuilt them with "other" innards.


Dave
Title: Re: Lost Gibson amp schematics recovered
Post by: sluckey on August 22, 2023, 02:13:36 pm
There's more info than I'll ever need in this Gibson Master Service book. It's a 173MB file...

     https://el34world.com/charts/Schematics/files/Gibson/Gibson_amp_master_service_book.zip
Title: Re: Lost Gibson amp schematics recovered
Post by: Greenwichpaul on August 22, 2023, 02:21:37 pm
Same Gibson who sues anybody making a triangular guitar and hints at a "V" shape?
Gibson produced a design a friend and I invented - the Thunderbolt. Was just a couple, but maybe I should call a US lawyer?

Title: Re: Lost Gibson amp schematics recovered
Post by: Sonny ReVerb on August 22, 2023, 03:50:37 pm
A lot of the schematics are probably available, but I think I would find the "work instructions" fascinating. Tube amp history is fading rapidly. It won't be long before everyone from that era is gone (if they aren't already).
Title: Re: Lost Gibson amp schematics recovered
Post by: sluckey on August 22, 2023, 06:47:49 pm
Some of us are still around. Did you look at the link I posted? Lots more info than just a schematic.

Title: Re: Lost Gibson amp schematics recovered
Post by: kagliostro on August 22, 2023, 06:57:18 pm
A friend gived me that file and I sent it to Doug

I'm happy I dit it

Franco
Title: Re: Lost Gibson amp schematics recovered
Post by: Sonny ReVerb on August 23, 2023, 05:26:00 am
Some of us are still around. Did you look at the link I posted? Lots more info than just a schematic.
I downloaded it, but I haven't had a chance to take a look at it yet. Thanks for the link (and thanks for the file Franco!).