No. of Channels
--
Amp Type
Tube
Inputs
Four inputs (two normal, two vibrato)
Outputs
--
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- 40W, 2-12 in. speakers, tube chassis, preamp: 3 X 7025, 12AX7, 2 X 12AT7, power: 2 X 6L6GC, GZ34 rectifier, tremolo, reverb, silverface control panel, four inputs, (two normal, two vibrato), nine silver-top knobs (Norm: bs, v, t, b, Vibrato: bs, v, t, b, r, s, i), tilt back legs, black tolex covering, silver grille, mfg. 1967-1981.
In 1968, a change in the bias section occured (Model AB6686). In 1969, the cathode was brought back to ground (Model AA1069). In 1972, the output is increased to 45W by using a different rectifier, and increased voltage in the output stage. In 1976, a master volume knob is added and a pull distortion switch. In 1981, the Pro Reverb went back to the blackface. At this time the output was raised to 70W, the tubes were changed to: preamp: 4 X 7025, 2 X 12AT7, power: 2 X 6L6, and had twelve black knobs with a middle added to each channel.
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- 15W, 1-15 in. Jensen, tube chassis, preamp: 12AY7, 12AX7, power: 2 X 6L6G, 5U5G rectifier, top control panel, four inputs, (two inst., two mic), three pointer knobs (mic. v, inst. v, tone), spare speaker jack in back, standby switch,...
- 26W, 1-15 in. Jensen, tube chassis, preamp: 2 X 12AY7, 12AX7, power: 2 X 6L6, 5U4G rectifier, top control panel, four inputs, (two inst., two mic), three pointer knobs (mic. v, inst. v, tone), ground switch added to panel, negative f...
- 25W, 1-15 in. Jensen speaker, tube chassis, preamp: 5 X 7025, power: 2 X 6L6GC, tremolo, brownface control panel, four inputs, (two normal, two vibrato), nine brown knobs (Norm: v, t, b, s, i, Vibrato: v, t, b, Both: p), brown tolex...
- 15W, 1-15 in. Jensen speaker, tube chassis, preamp: 6SC7/6N7, power: 2 X 6L6, 5Y3 rectifier, two channels, back control panel, three inputs, (one mic, two inst.), three pointer knobs (mic. v, inst. v, tone), polished wood cabinet, re...
- 15W, 1-15 in. Jensen speaker, tube chassis, preamp: 3 X 6SC7, power: 2 X 6L6G, 5U4G rectifier, two channels, top black control panel, four inputs, (two inst., two mic), three pointer knobs (mic. v, inst. v, tone), early tweed coverin...
- 25W, 1-15 in. speaker, tube chassis, preamp: 2 X 7025, 12AX7, 12AT7, power: 2 X 6L6GC, 5U4GB rectifier, tremolo, front black control panel, four inputs, (two normal, two vibrato), bright switches, eight silver-top knobs (Norm: b...
- 40W, 2-12 in. speakers, tube chassis, preamp: 3 X 7025, 12AX7, 2 X 12AT7, power: 2 X 6L6GC, 5U4GB rectifier, tremolo, reverb, black control panel, four inputs, (two normal, two vibrato), nine silver-top knobs (Norm: bs, v, t, b, Vibr...
