GIBSON GA-90 HIGH FIDELITY Description
- 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: v, tone, Ch. 2: v, tone, power switch) or seven black knobs (second version: Ch. 1: v, t, b, Ch. 2: v, t, b, power switch), gain switch, available in dark brown buffalo-grained fabric covering with either a large rectangular see-through grille with a small "G" logo on the right-hand side (1953-54), large rectangular grille with a centered "Gibson" logo (1955-56), or a large rectangular woven Saran grille with a "Gibson 90" logo (1957-1960), 24.5 in. wide, 20 in. tall, 9.5 in. deep, 38 lbs., 947 shipped, mfg. 1953-1960.