- 8W, 1-8 in. speaker, three tube chassis, preamp: 1 X 12AX7, power: 1 X 6BM8, rectifier: 5Y3, single channel, tremolo, reverb, top mounted nickel control panel, two instrument inputs, two or three black chicken head knobs (v, s, r), tweed...
- 16W, 1-12 in. Jensen speaker, eight tube chassis, preamp: 4 X 6EU7, 1 X 12AU7, power: 2 X 6V6, rectifier: 5Y3, two channels, top mounted nickel control panel, four inputs (two per channel), five black and silver knobs (v1, v2, tone, r, on...
- 14-16W output, 1-12 in. Jensen speaker, seven tube chassis, preamp: 3 X 6EU7, 1 X 12AU7, power: 2 X 6V6, rectifier: 5Y3, two channels, reverb, top chrome control panel, four inputs (two per channel), five black and silver knobs (v1, v2, t...
- 14W, 1-10 in. speaker, 5 tubes, preamp:2 X 12AX7, power: 2 X 6V6, 5Y3 rectifier, single channel, tremolo, top chrome control panel, three inputs, four black chicken head knobs (v, tone, depth, freq.), tweed covering, dark slanted grille c...
- 14W, 4-8 in. Jensen speakers, designed for accordions, seven tube chassis: preamp: 2 X 5879, 1 X 6SQ7, 1 X 12AX7, power: 2 X 6V6, rectifier: 5Y3, two channels, tremolo, top control panel, four inputs (two per channel), six black knobs (v1...
- similar to the GA-45T except has reverb instead of tremolo, 106 shipped, mfg. 1961 only.
- 60W, 2-12 in. speakers, accordion combo, ten tube chassis, preamp: 3 X 7025, 2 X 5879, 1 X 6SN7, 1 X 6V6, power: 2 X 6550, rectifier: 5AR4, two channels, tremolo, top/rear control panel, four inputs (two per channel), eight black knobs (C...
- 30W (2 X 15W Stereo), 2-10 in. speakers, eight tube chassis, preamp: 4 X 6EU7, power: 4 X 6BQ5, two channels, top silver control panel, five inputs (four mono, one stereo), six black and silver knobs (Ch. 1: v, b, t, Ch. 2: v, b, t), ster...
- similar to the GA-78, except has a reverb circuit, nine-tube chassis, preamp: 3 X 6EU7, 1 X 7199, 1 X 12AU7, power: 4 X 6BQ5, reverb control for a total of seven knobs, 105 shipped, mfg. 1961 only.
- similar to the GA-78, except has a reverb and tremolo circuit, tube chassis unknown, 4 shipped, mfg. 1961 & 63 only.
- 35W, 2-12 in. speakers, eight tube chassis, preamp: 3 X 12AX7, power: 4 X 6BQ5, rectifier: GZ34, two channels, four inputs, seven knobs, tweed covering, brown grille with "Maestro Stereo" logo, metal handle with plastic middle,...
