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- 25W, 1-15 in. Jensen speaker, guitar combo, seven-tube chassis, preamp: 2 X 12AX7, 2 X 5879, power: 2 X 6L6, rectifier: GZ34, two channels, top rear-mounted silver control panel, four inputs (two per channel), four black chicken head knobs (Ch.1: v, tone, Ch. 2: v, tone), six button Vari-tone selector switch, tweed covering, brown cloth grille with Gibson logo in upper right corner, 22 in. wide, 20 in. tall, 10.125 in. deep, 594 shipped, mfg. 1959-1961.
A revised model GA-80T with tremolo was advertised in 1962, but none were ever shipped. A plain GA-80 without Vari-Tone may exist as well.
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- 25W, 6-8 in. speakers, guitar combo, eight-tube chassis, preamp: 2 X 5879, 1 X 12AU7, 2 X 6SN7, power: 2 X 6L6, rectifier: 5V4, two channels, top silver control panel, four inputs (two per channel), five black knobs (first version: Ch. 1:...
- 90W, 2-12 in. regular speakers (GA-95RVT) or Lansing speakers (GA-95RVTL), guitar combo, ten-tube chassis, preamp: 2 X 6EU7, 2 X 12AU7, 1 X 12AX7, power: 4 X 6L6, rectifier: OA2, three diodes, two channels, reverb, tremolo, four input jac...
- 60W, 2-12 in. Norelco/Phillips dual voice cone speakers, guitar piggyback unti with "tuck-a-way" design, nine tube chassis, preamp: 2 X 6EU7, 3 X 12AU7, 1 X 7199, power: 2 X 6L6, rectifier: 0A2, six diodes, two channels, reverb,...
- 35W, 1-12 in. Jensen speaker, guitar/bass combo/piggy-back design with a removable chassis that could be mounted on a tripod stand, nine-tube chassis, preamp: 1 X 6EU7, 2 X 6BD6, 2 X 6FM8, power: 2 X 6L6, rectifier: GZ34, 0C2 AS voltage r...
- 25W, 1-12 in. Jensen speaker, guitar combo with a removable chassis, six-tube chassis, preamp: 2 X 12AX7, 1 X 5V6, power: 2 X 5881, rectifier: 5V4, two channels, front silver control panel, four inputs (two per channel), six black chicken...
- 60W, 2-12 in. Norelco/Phillips dual voice cone speakers, guitar combo, 11-tube chassis, preamp: 2 X 12AX7, 1 X 12AY7, 2 X 6BJ8, 2 X 6SK7, 6V6, power: 2 X 6550, rectifer: GZ34, two channels, top control panel, four inputs (two per channel)...
- 60W, 2-12 in. Norelco/Phillips dual voice cone speakers, guitar combo, 12-tube chassis, preamp: 3 X 12AX7, 1 X 12AY7, 2 X 6BJ8, 2 X 6SK7, 6V6, power: 2 X 6550, rectifier: GZ34, three channels, top control panel, six inputs (two per channe...
- 36W (2 X 18W stereo), 4-8 in. and 1-12 in. Jensen speakers, 13-tube chassis, preamp: 4 X 12AX7, 1 X 12AU7, 3 X 6CG7, power: 4 X 6BQ5, rectifer: GZ34, two channels, stereo pitch shifting vibrato, top rear-mounted silver control panel, four...
