The roots of Gibson go way back to Orville Gibson when he and other men founded the company in 1902. Gibson guitars were made with the Gibson logo starting in 1896 (for more information on Gibson electric guitars, refer to the Blue Book of Electric Guitars). Gibson amplifiers didn't come into the picture until the late 1930s, however. With the release of the first Gibson electric guitar, the ES-150, a guitar amplifier would be needed to make the new electric pickup useful. The first Gibson amplifiers were the EH series, which debuted in the late 1930s. With World War II going on in the early 1940s, Gibson amplifiers didn't really become a steady production item until circa 1948. Shipment totals from Gibson were first tracked on amplifiers starting in 1948. In 1948, all amplifier production was moved into the Kalamazoo factory and the first GA Series models were released. These popular models were produced in all shapes and sizes through 1967, when all production of amplifiers at the Kalamazoo plant halted. When Gibson bought Epiphone in 1957, they started to produce Epiphone amplifiers. Almost all Epiphone amps between 1957 and 1970 are copies of Gibson models (see Epiphone for more information and corresponding models). Gibson also introduced the Maestro brand on amps specifically designed for accordions (see Maestro).
Other companies started building amps for Gibson, and by 1968 a new line of tube amplifiers with some familiar old names were released. These lasted only a short time through 1969, when only various solid-state models were available. In the early 1970s, a new series was introduced called the G Series with some models featuring a phase shift. In 1977, the Lab Series was introduced (see Lab Series). These amps were designed by Moog, which was a division of Gibson's parent company, Norlin. These amps all have an L prefix and come in a variety of power and speaker configurations. The first Lab series was produced through the late 1970s, but was replaced by the Lab Series 2 in 1980 (also see Lab Series). These amps have a GA prefix for guitars and a B prefix for bass amps. In 1980, the Genesis series was released as well, which are amps that are targeted for practice and entry level models. These amps also have G and B prefixes for their guitar and bass models (see Genesis).
Another series of Gibson amplifiers appeared in the early 1990s, with the revival of the Lab series again. These amps featured a gold and orange cover and came in the Classic Gold, Gold Chorus, and GB 440 bass amp models. Currently Gibson produces a line of tube amps called the Goldtone Series.
Information courtesy Wallace Marx Jr., Gibson Amplifiers 1933-2008 - 75 Years of the Gold Tone, George Gruhn/Walter Carter, Gruhn's Guide to Vintage Guitars, Walter Carter, Gibson Guitars: 100 Years of an American Icon; Aspen Pittman, The Tube Amp Book "Deluxe Revised Edition," and Larry Meiners: Gibson Shipment Totals), and various Gibson catalogs.
Amplifiers currently produced since the early 1990s. Gibson previously produced amplifiers in Kalamazoo, MI from the mid-1930s-1967, and various other locations including Chicago, IL from 1968 through the mid-1970s. Distributed by the Gibson Guitar Corporation in Nashville, TN.

GIBSON Guitar Amplifiers Models

GIBSON GA-50H Image

GIBSON GA-50H

- 50W, guitar head-unit, eight-tube chassis, preamp: 5 X 12AX7, power: 2 X EL34, rectifier: 5V4, two channels, reverb, tremolo, front control panel, three inputs, 10 knobs (Ch. 1: v, t, b, Ch. 2: v, t, m, b, r, tremolo s, tremolo d), standb...

GIBSON G-80 Image

GIBSON G-80

- 60W, 4-10 in. speakers, guitar combo, solid-state chassis, two channels, tremolo, reverb, front black control panel, four inputs (two per channel), nine knobs (Ch. 1: v, t, b, Ch. 2: v, t, b, r, s, i), black vinyl covering, black grille,...

GIBSON GA-8 GIBSONETTE Image

GIBSON GA-8 GIBSONETTE

- 8W, 1-10 in. speaker, guitar combo, four-tube chassis, preamp: 1 X 12AX7, power: 2 X 6V6, rectifier: 5Y3, single channel, top control panel, two inst. inputs, single volume knob, available in brown covering with a round metal speaker gril...

GIBSON GA-45RVT SATURN Image

GIBSON GA-45RVT SATURN

- 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...

GIBSON GA-77RET/GA-77RETL VANGUARD Image

GIBSON GA-77RET/GA-77RETL VANGUARD

- 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...

GIBSON GA-200 RHYTHM KING CRESTLINE TUCK-A-WAY Image

GIBSON GA-200 RHYTHM KING CRESTLINE TUCK-A-WAY

- 60W, 2-12 in. Norelco/Phillips dual voice cone speakers, guitar/bass piggy-back design with a removable head that was stored in the back of the cabinet, 11-tube chassis, preamp: 2 X 12AX7, 1 X 12AY7, 2 X 6BJ8, 2 X 6SK7, 6V6, power: 2 X 65...

GIBSON GA-60RV (TGA-BK60RV) Image

GIBSON GA-60RV (TGA-BK60RV)

- 60W, 2-12 in. Celestion speakers, seven-tube chassis, preamp: 5 X 12AX7, power: 2 X EL34, two channels, reverb, front brown control panel, single input, 12 gold knobs (Ch. 1: v, t, m, b, Ch. 2: g, level, t, m, b, r1, r2, MV), preamp switc...

GIBSON THOR Image

GIBSON THOR

- 50W, 2-10 in. speakers in a vertical cabinet, bass amp combo, solid-state chassis, single channel, front black control panel, two inputs, three knobs (v, t, b), black vinyl covering, black grille, 18.75 in. wide, 31.25 in. tall, 11.25 in....

GIBSON G-105 Image

GIBSON G-105

- 100W, 2-12 in. speakers, guitar combo, solid-state chassis, single channel, phase shift, reverb, front silver control panel, two inputs, eight knobs (harmonic distortion, v, r, t, m, b, MV, phase), phase switch, black vinyl covering, blac...

GIBSON EH-275 Image

GIBSON EH-275

- similar to the EH-185, except has a natural maple cabinet with tortoiseshell celluloid binding, approx. 30 produced, mfg. 1940-42.

GIBSON GA-8 DISCOVERER Image

GIBSON GA-8 DISCOVERER

- 9-10W, 1-12 in. speaker, guitar combo, five-tube chassis, preamp: 1 X 6EU7, 1 X 6C4, power: 2 X 6BQ5, rectifier: 6CA4, single channel, top nickel-plated control panel (1960-62) or front control panel (1963), two inst. inputs, two knobs (v...

GIBSON GA-50 Image

GIBSON GA-50

- 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...

GIBSON GA-77RVT/GA-77RVTL VANGUARD Image

GIBSON GA-77RVT/GA-77RVTL VANGUARD

- 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...

GIBSON GA-300RVT SUPER 300 Image

GIBSON GA-300RVT SUPER 300

- 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,...

GIBSON SGT/CAB SPEAKER CABINET Image

GIBSON SGT/CAB SPEAKER CABINET

- 240W mono (120W per side stereo), cabinet is split into two cabinets with 2-10 in. Vintage Celestion speakers the top half with an open back design, and 2-12 in. Vintage Celestion speakers in the bottom half with a closed back design, des...

GIBSON G-115 Image

GIBSON G-115

- 100W, 4-10 in. speakers, guitar combo, solid-state chassis, single channel, phase shift, reverb, front silver control panel, two inputs, eight knobs (harmonic distortion, v, r, t, m, b, MV, phase), phase switch, black vinyl covering, blac...

GIBSON GA-8T Discoverer Image

GIBSON GA-8T Discoverer

- similar to the GA-8 Discoverer, except has built-in tremolo, five-tube chassis, preamp: 2 X 6EU7, power: 2 X 6BQ5, rectifier: 6CA4, four knobs (v, tone, s, i, 1960-62) or five knobs (v, t, b, s, i), available in tweed covering with a full...

GIBSON GA-50T Image

GIBSON GA-50T

- 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.

GIBSON GA-79(T) Image

GIBSON GA-79(T)

- 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...

GIBSON GA-400 SUPER 400 Image

GIBSON GA-400 SUPER 400

- 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...

GIBSON GA-9 Image

GIBSON GA-9

- 10W, 1-8 in. (1954-56) or 1-10 in. Jensen (1956-59) speaker, four-tube chassis: preamp: 6SJ7, power: 2 X 6V6, rectifier: 5Y3, single channel, top-mounted chrome control panel, two inst. inputs, two knobs (v, tone), available in light brow...

GIBSON GA-79RV Image

GIBSON GA-79RV

- similar to the GA-79(T) except has a reverb circuit with a reverb knob, 409 shipped (1 shipped in 1967), mfg. 1961 only.

GIBSON GA-CB Image

GIBSON GA-CB

- 25-30W, 1-15 in. Jensen speaker with a built-in tweeter, ten-tube chassis, preamp: 3 X 6SJ7, 2 X SQ7, 2 X 6J5, power: 2 X 6L6, rectifier: 5T4, two channels, tremolo, bottom mounted chassis/control panel, four inputs (three inst., one mic)...

GIBSON GA-14 TITAN Image

GIBSON GA-14 TITAN

- 14W, 1-10 in. Jensen speaker, guitar/microphone combo, five-tube chassis, preamp: 2 X 12AX7, power: 2 X 6V6, rectifier: 5Y3, two channels, top control panel, four inputs (two per channel), three control knobs (v1, v2, tone), tweed coverin...

GIBSON GA-79RVT Image

GIBSON GA-79RVT

- 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...

GIBSON GA-15 EXPLORER Image

GIBSON GA-15 EXPLORER

- 14W, 1-10 in. speaker, guitar combo, five-tube chassis, preamp: 1 X 12AX7, 1 X 6SL7, power: 2 X 6V6, rectifier: 5Y3, two channels, three inputs (Ch. 1: two inst., Ch. 2: one inst./mic), three knobs (two v, tone), light tweed covering, dar...

GIBSON GA-15RVT EXPLORER Image

GIBSON GA-15RVT EXPLORER

- 18W, 1-10 in. speaker, guitar combo, five-tube chassis, preamp: 2 X 6EU7, 1 X 12AU7, power: 2 X 6BQ5, solid-state rectifier, single channel, tremolo, reverb, front white control panel, three inputs, seven knobs (v, t, b, r, depth, freq.,...

GIBSON GA-17RVT SCOUT Image

GIBSON GA-17RVT SCOUT

- wattage unknown, 1-10 in. speaker, six-tube chassis, preamp: 2 X 6EU7, 1 X 12AX7, power: 2 X 6AQ5, rectifier: 6CA4, single channel, tremolo, reverb, top silver control panel, two inputs, four black and silver knobs (v, r, tremolo freq., p...

GIBSON GA-18 EXPLORER Image

GIBSON GA-18 EXPLORER

- 14W, 1-10 in. speaker, guitar/microphone combo, five-tube chassis, preamp: 1 X 12AX7, 1 X 6SL7, power: 2 X 6V6, rectifier: 1 X 5Y3, single channel, top silver control panel, three inputs, two black chicken head knobs (v, tone), tweed cov...

GIBSON GA-18T EXPLORER Image

GIBSON GA-18T EXPLORER

- 14W, 1-10 in. speaker, guitar combo, six-tube chassis, preamp: 2 X 6EU7, 1 X 12AX7, power: 2 X 6AQ5, rectifier: 1 X 6CA4, single channel, tremolo, top rear-mounted control panel, three inputs, four black chickenhead knobs (v, tone, tremol...

GIBSON GA-19RVT FALCON Image

GIBSON GA-19RVT FALCON

- 15W, 1-12 in. speaker, guitar combo, seven-tube chassis, preamp: 3 X 6EU7, 1 X 7199, power: 2 X 6V6, rectifier: 5Y3, two channels, tremolo, reverb, top silver control panel, two inputs, five black knobs (v, tone, depth, freq, r), footswit...

GIBSON GA-20 FIRST VERSION Image

GIBSON GA-20 FIRST VERSION

- 12-14W, 1-12 in. Jensen speaker, six-tube chassis, preamp: 2 X 6SC7, 1 X 6SL7, output: 2 X 6V6, rectifier: 5Y3, two channels, top rear-mounted control panel, four inputs (three inst., one mic), three controls (inst. v, mic v, tone), brown...

GIBSON GA-20/GA-20 CREST SECOND VERSION Image

GIBSON GA-20/GA-20 CREST SECOND VERSION

- 16W, 1-12 in. Jensen Concert Series speaker, guitar combo, five-tube chassis, preamp: 2 X 12AX7, output: 2 X 6V6, rectifier: 5Y3, two channels, top rear control panel, four inputs (three inst., one mic 1954-56, two per channel 1957-1961),...

GIBSON GA-20T/GA-20T Ranger Image

GIBSON GA-20T/GA-20T Ranger

- similar to the GA-20/GA-20 Crest Second Version, except has a tremolo circuit with a seven-tube chassis, preamp: 1 X 12AY7, 1 X 7025, 1 X 5879, 1 X 6SQ7, power: 2 X 6V6, rectifier: 5Y3, five knobs (tone, s, v1, i, v2), available in two-to...

GIBSON GA-20RVT MINUTEMAN Image

GIBSON GA-20RVT MINUTEMAN

- 12.5W, 1-12 in. speaker, guitar combo, eight-tube chassis, preamp: 3 X 6EU7, 2 X 12AU7, power: 2 X EL84, rectifier: 5Y3, two channels, reverb, tremolo, white front control panel, four inputs (two per channel), 10 knobs (Ch. 1: v, t, b, Ch...