No. of Channels
Two-Channel
Amp Type
Tube
Inputs
Four inputs
Outputs
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- similar to the GA-55, except has vibrato circuit with a remote vibrato switch and control that plugged into the player's guitar, 473 shipped, mfg. 1954-58.
The vibrato controls were mounted on a small plastic box that had a guitar plug fastened to it so the vibrato controls could be adjusted on the guitar while a person was playing without having to go back to the amp.
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- approx. 35-40W, 4-10 in. speakers, guitar combo, nine-tube chassis, preamp: 4 X 6EU7, 1 X 12AU7, 1 X 6CG7, power: 2 X 6L6, rectifier: 0A2, two channels, reverb, tremolo, front white control panel, four inputs (two per channel), 12 black k...
- 25W, 1-15 in. Jensen speaker, six-tube chassis, preamp: 1 X 12AX7, 1 X 12AY7, 1 X 12AU7, power: 2 X 6L6, rectifier: 5V4, two channels, top control panel, four inputs (two per channel), six black chicken head knobs (1954-57: v1, v2, b, t,...
- 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,...
- 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),...
- 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...
- approx. 25W, 2-10 in. speakers standard (GA-75) or 1-15 in. Lansing (Model GA-75L) speaker optional, guitar/bass combo, six-tube chassis, preamp: 2 X 6EU7, 1 X 6CG7 (6FQ7), power: 2 X 6L6, rectifier: 6C4, three diodes, two channels, top/r...
- 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...
- 30W mono (2 X 15 Stereo), 2-10 in. Jensen speakers, stereo guitar combo, nine-tube chassis, preamp: 3 X 6EU7, 1 X 7199, 1 X 12AU7, power: 4 X 6BQ5, solid-state rectifier, two channels, tremolo, top silver control panel, five inputs (four...
