The G-15 Gemini II was the 15-inch version of the popular 12-inch G-12 Gemini I. While the 15-inch speaker worked well for bass and guitar, this amp was actually originally targeted towards accordion players. The Gemini I delivered 30 watts of tube power compared to the 22 watts of the Gemini I. The original amp came with a two button foot-switch. 

Years of Production: 1965 - 1968

Electronics: 30-watts, two channels (guitar, accordion), two inputs per channel, reverb and tremolo, 3 x 12AX7, 1 x 7199, 1 x 6CG7 tubes

Controls: Bass, treble, volume; tremolo intensity and depth, reverb intensity

Notable Players: Mike Mills, Johnny Hickman