FENDER CONCERT (BROWNFACE) Description
- 40W, 4-10 in. Jensen speakers, seven-tube chassis, preamp: 5 X 7025, power: 2 X 6L6GC, two channels, vibrato, brownface control panel, four inputs, (two normal, two vibrato), nine brown knobs (Norm: v, t, b, Vibrato: v, t, b, s, i, Both: p), brown tolex covering, light brown grille, mfg. 1959-1963.
The earliest Concerts had a center volume control, which was a transition period. First model number was 6G12 and in late 1960, a tremolo circuit was added (Model 6G12-A). In 1961, the light brown grille was changed to maroon, which was then changed to a richer shade of brown. In 1962, one 7025 tube was replaced with two 12AX7´s, and the 6L6GC tube was replaced by a 5881. The grille also changed to a wheat-colored cloth. In 1963, the Model AA763 was introduced.