Other Amps

New GA40 build

1

Cooking up a new build today. A minimalist version of a late 50’s Gibson GA40, minus the tremolo. Still has the 5879 preamp.

2

Threw in some Jupiter red caps. Should be dark and warm.

3

What make of transformers (guess there are only several) do you use, or does it depend on the project ?

4

Cool project! Should be a killer. I’m a huge fan of dark and warm!

5

The 50s gibson amps are fantastic. I used to use a GA400 with a maestro reverb/echo when I was younger and willing to haul that much gear! Good luck with the build!! And be sure to post sound clips when it's done!

6

Donor amp out of a Hammond. Looks like Triwek and Midwest trannies.

7

Hey Paul, there’s more where this came from!

8

This one’s going into a head cabinet.

9

Cool! Nice Job! I used to have the guts for a Gibson GA90 that I recapped, repaired and installed in a new cab with a 12 and an 8 I believe. It had the 5879 in the preamp too.

I found it a bit dark and passed it on but I sure liked the separate preamp and power amp construction.

10

Yea, think I’m gonna stick a bright cap on the volume control.

11

Cool! Nice Job! I used to have the guts for a Gibson GA90 that I recapped, repaired and installed in a new cab with a 12 and an 8 I believe. It had the 5879 in the preamp too.

I found it a bit dark and passed it on but I sure liked the separate preamp and power amp construction.

– Toxophilite

That gets into a whole new thread about the thinking back then of separated preamp and power sections. Supro / Gretsch was even doing this up thru the mid 60s, correct?

12

I never understood that description: "warm"

13

Warm, woody, chimney.....they’re all stupid. I’ve never read a single adjective that described what I was hearing.

I try not to use them, but end up doing so just to put a sound in a relative aural ballpark.

14

"Chime" bothers me most... " warm" may have come around when lot of early solid state efforts didn't sound that good... described as brittle, flat -- yes even Thomas Vox was described this way .. so warm was what they used to differentiate tube builds... (just a guess)

15

Dark and bright make sense Warm usually refers to low mids and low frequencies However most of these terms are thrown about pretty loosely

On another note Powdog I was going to try a bright cap on a Quilter

16

Bright, like an LED? Or neon yellow?


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