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...