No. of Channels
Two-Channel
Amp Type
Tube
Inputs
Four inputs (two per channel)
Outputs
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- 25W, 1-15 in. Jensen speaker, guitar combo, six tube chassis, preamp: 1 X 7025, 1 X 12AY7, 1 X 12AU7, power: 2 X 6L6, rectifier: 5V4, two channels, top control panel, four inputs (two per channel), four black chicken head knobs (Ch. 1 v, Ch. 2 v, tone, power), two-tone brown buffalo-grain covering, narrow rectangular woven Saran brown grille with "Gibson" logo and Texas longhorn logo on front, 20 in. wide, 22 in. tall, 10.125 in. deep, 40 lbs, 160 shipped, mfg. 1955-56.
A fidelity knob and "bell-like" treble are what set this country western amp aside from standard models. Unlike most Gibson models from this era, this model had a rectangle speaker opening that ran vertical leaving large strips of covering on either sides of the speaker.
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- 50W, 1-15 in. regular speaker (GA-77RVT) or optional 1-15 in. Lansing speaker (GA-77RVTL), guitar combo, eight-tube chassis, preamp: 4 X 6EU7, 1 X 12AU7, 1 X 7199, power: 2 X 6L6, rectifier: 5V4, two channels, tremolo, reverb, top/front s...
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- 50W, 2-10 in. standard speakers (GA-77RET) or 1-15 in. JBL optional speaker (GA-77RETL), guitar combo, nine-tube chassis, preamp: 3 X 6EU7, 2 X 12AU7, 1 X 6CG7, power: 2 X 6L6, rectifier: 0A2, two channels, tremolo, echo, front white cont...
- 18W, 2-12 in. speakers, guitar combo, six-tube chassis, preamp: 2 X 12AY7, 1 X 6SC7, power: 2 X 6L6, rectifier: 5V4, two channels, top rear-mounted control panel, four inputs (two per channel), five knobs (Ch. 1 v, Ch. 2 v, b, t, power),...
- similar to the GA-79(T) except has a reverb circuit with a reverb knob, 409 shipped (1 shipped in 1967), mfg. 1961 only.
- similar to the GA-77 Vanguard, except has a reverb circuit with six knobs (Ch. 1: v, b, t, Ch. 2: v, tone, r), tweed covering, full front slanted dark brown grille, 337 shipped, mfg. 1961 only.
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- 30W mono (2 X 15 Stereo), 2-10 in. Jensen speakers, stereo guitar combo, eight-tube chassis, preamp: 4 X 6EU7 power: 4 X 6BQ5, solid-state rectifier, two channels, tremolo, top silver control panel, five inputs (four mono, one stereo), si...
