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- 25W, 1-12 in. speaker, guitar combo, six-tube chassis, 1962-63 preamp: 3 X 6EU7, 1 X 12AU7, power: 2 X 7591, rectifier: GZ34, 1964-67 preamp: 3 X 6EU7, 1 X 6C4, power: 2 X 7591, rectifier: GZ34, two channels, tremolo, top/front silver control panel, four inputs (two per channel), six knobs (Ch. 1 v, Ch. 2 v, tone, tremolo depth, tremolo freq., power), Indian Brown covering, Spanish Crush brown grille with Gibson logo in upper right-hand corner, leather handle, 26 in. wide, 20 in. tall, 10.5 in. deep, 987 shipped, mfg. 1962-67.
This is the same model as the GA-40T Les Paul, but Gibson changed the name of it when they stopped using the Les Paul brand on their products (see the Gibson Les Paul Guitar). Shipping totals reflect the total number shipped from the start of 1962 (regardless if GA-40T Les Paul models were still shipped into 1962). Although this amp was shipped through 1967, it doesn't appear that it adopted the style between 1965 and 1967 that featured black covering, a silver grille, and front white control panel.
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- 35W, 1-12 in. speaker, guitar combo, eight-tube chassis, preamp: 2 X 6EU7, 12AX7, 2 X 12AU7, power: 2 X 7591, rectifer: 0A2, two channels, tremolo, reverb, front white control panel, four inputs (two per channel), 10 knobs (Ch.1: v, t, b,...
- approx. 15W, 1-15 in. speaker (early models) or 2-10 in. speakers (later models), guitar combo, eight-tube chassis, preamp: 4 X 6EU7, 1 X 12AU7, power: 2 X 6V6, rectifier: 5Y3, two channels, tremolo, reverb, top front control panel, four...
- similar to the GA-50, except has a tremolo circuit with an eight-tube chassis, preamp: 3 X 6SJ7, 1 X 6SN7, 1 X 6SL7, power: 2 X 6L6, rectifier: 5V4, and six knobs (Ch. 1 v, Ch. 2 v, b, t, s, i), 1,717 shipped, mfg. 1948-1955.
- Wattage unknown, 2-10 in. speakers, guitar combo, nine-tube chassis, preamp: 4 X 6EU7, 1 X 12AU7, 1 X 6CG7, power: 2 X 6L6, rectifier: 0A2, three diodes, two channels, reverb, tremolo, front white control panel, four inputs (two per chann...
- 15W, 1-12 in. Jensen P12R and 1-8 in. speakers, guitar combo, six-tube chassis, preamp: 1 X 6SJ7, 2 X 6J5, power: 2 X 6V6GT, rectifier: 5Y3, single channel, bottom rear-mounted control panel, four inputs (three inst., one mic), two knobs...
- 14W (1955-57) or 16W (1958-1960), 1-12 in. Jensen speaker, guitar/microphone combo, seven-tube chassis, preamp: 2 X 5879, 1 X 7025, 1 X 6SQ7, power: 2 X 6V6, rectifier: 5Y3, two channels, tremolo, top rear-mounted control panel, four inpu...
- 18W, 1-12 in and 1-8 in. Jensen speakers, seven-tube chassis, preamp: 2 X 6SJ7, 2 X 6J5, power: 2 X 6550, rectifier: 5AR4, two channels, bottom rear control panel, four inputs (three inst., one mic), four knobs (Ch. 1 v, Ch. 2 v, b, t), b...
- 14W, 1-12 in. Jensen P12R and 1-8 in. Jensen speakers, guitar combo, six-tube chassis, preamp: 1 X 6SC7, 2 X 6SJ7, power: 2 X 6V6, rectifier: 5Y3, two channels, rear bottom control panel (1949-1954) or rear top control panel (1954-1961),...
