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ELECTRIC SS AMPS: COMBO MODELS (1971-1980)

In 1971, Ampeg released their first solid-state combo amp with the GT-10. They followed in 1973 with five more new solid-state amps that shared similar chassis. Models with "B" prefixes were designed for bass use and models with "G" prefixes were designed for guitar use. Ampeg also used the model number to indicate the speaker configuration. For example, the G-412 was a guitar amp with 4-12 in. speakers. Many amps in this series were proudced throughout the 1970s and discontinued in 1980.

Models (11)

B-100

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- 20W, 1-10 in. speaker, bass combo, solid-state channel, single channel, front silver control panel, two input jacks, three black and silver knobs (v, b, t), power switch, black covering, blue/gray grille, mfg. 1976-1980.
The B-100 and G-100 shared the same chassis, except the B-100 had a heavier magnet in the speaker for bass applications.
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B-115

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- 120W, 1-15 in. speaker, bass combo, solid-state chassis, two channels, front silver control panel, four inputs (two per channel), eight black and silver knobs (Ch. 1: v, b, m, t, Ch 2: v, b, m, t), selective midrange switch and ultra-hi switch for each channel, polarity switch, power switch, tuned reflex speaker design, black covering, black grille, mfg. 1973-1980.
The B-115 and the B-410 shared the same chassis.
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B-410

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- 120W, 4-10 in. speakers, bass combo, solid-state chassis, two channels, front silver control panel, four inputs (two per channel), eight black and silver knobs (Ch. 1: v, b, m, t, Ch 2: v, b, m, t), selective midrange switch and ultra-hi switch for each channel, polarity switch, power switch, sealed cabinet, black covering, black grille, mfg. 1973-1980.
The B-115 and the B-410 shared the same chassis.
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G-18

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- 10W, 1-8 in. speaker, guitar combo, solid-state chassis, single channel, front silver control panel, two input jacks, three black and silver knobs (v, t, b), power switch, black covering, blue/gray grille, mfg. 1977-1980.
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G-100

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- 20W, 1-10 in. speaker, guitar combo, solid-state channel, single channel, front silver control panel, two input jacks, three black and silver knobs (v, b, t), power switch, black covering, blue/gray grille, mfg. 1976-1980.
The B-100 and G-100 shared the same chassis, except the B-100 had a heavier magnet in the speaker for bass applications.
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G-110

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- 20W, 1-10 in. speaker, guitar combo, solid-state channel, single channel, reverb, tremolo, front silver control panel, two input jacks, three black and silver knobs (v, t, b, s, i, r), footswitch jack, power switch, black covering, blue/gray grille, mfg. 1978-1980.
The G-110 was very similar to the G-100 with the addition of reverb and tremolo.
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G-115

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- 175W, 1-15 in. JBL speaker, guitar combo, solid-state chassis, single channel, front silver control panel, two input jacks, ten black and silver knobs (v, t, m, b, mid-freq., p, sensitivity, r, s, i), black covering, blue/gray grille, mfg. 1979-1980.
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G-212

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- 120W, 2-12 in. speakers, guitar combo, solid-state chassis, two channels, reverb, tremolo, front silver control panel, four inputs, two per channel, eleven black and silver knobs (Ch 1: v, t, m, b, Ch 2: v, t, m, b, Both: r, s, i), midrange and ultra hi switch for each channel, polarity switch, power switch, open back, black covering, black grille with white piping, mfg. 1973-1980.
Altec speakers were optional. The G-212, G-410, and G-412 all shared the same chassis.
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G-410

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- 120W, 4-10 in. speakers, guitar combo, solid-state chassis, two channels, reverb, tremolo, front silver control panel, four inputs, two per channel, eleven black and silver knobs (Ch 1: v, t, m, b, Ch 2: v, t, m, b, Both: r, s, i), midrange and ultra hi switch for each channel, polarity switch, power switch, sealed cabinet, casters included, black covering, black grille with white piping, mfg. 1973-1980.
Altec speakers were optional. The G-212, G-410, and G-412 all shared the same chassis.
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G-412

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- 120W, 4-12 in. speakers, guitar combo, solid-state chassis, two channels, reverb, tremolo, front silver control panel, four inputs, two per channel, eleven black and silver knobs (Ch 1: v, t, m, b, Ch 2: v, t, m, b, Both: r, s, i), midrange and ultra hi switch for each channel, polarity switch, power switch, sealed cabinet, casters included, black covering, black grille with white piping, mfg. 1973-1980.
Altec speakers were optional. The G-212, G-410, and G-412 all shared the same chassis.
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GT-10

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- 15W, 1-10 in. speaker, guitar combo, solid-state chassis, single channel, reverb, silver top control panel, two inputs, four black knobs (v, t, b, r), power switch, black covering, blue/gray grille, mfg. 1971-1980.
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