- Nov 3, 2004
I see this project as a bit of a non-starter, ...
- The chassis would have to be custom bent and punched, there is no doing this with an existing Tweed style chassis. There isn't a chassis out there with enough octal preamp holes. You could probably rework something like a Super reverb chassis
- The power transformer has a lot supply a lot of heater current and still have the proper high tension voltage
- It would need a custom power sting, with a lot of nodes, because the Gibson amps ran on about 100 volts less B+ with a poor current supply
- Octal preamp tubes are finicky, they have their tone benefits are are hard to keep quiet. The tone of the Gibson amp isn't in the octal tubes, but the overall tone stack and design, the noval GA-20 still sounded like a GA-20
- As noted, the tubes listed include two channels and a PI for each circuit, it's going to have to be a compromise of either or, especially on PI