Gibson Invader GA-30RVT
I think this amp is a 1962 model (8 tubes instead of 9). This is a great sounding amp - at least for me. The amp does not exactly match the Gibson schematic shown here. It worked fine when I initially got it, but has since needed some repair work. I've made a few repairs to keep it working and it's been all very worthwhile.Gibson Schematic
Parts
Ampwares
Antique Electronic Supply
First problem: Reduced output, somewhat distorted. The problem turned out to be one of the power resistors which had to be replaced.
Second problem: No output at all. Had to replace the GZ34/5AR4 rectifier tube.
Third problem: Sounded like a motorboat. The problem continued
even after replacing the filter capacitor. All the caps needed to be replaced. Sounds great once again.