No. of Channels
Two-Channel
Amp Type
Tube
Inputs
Three inputs
Outputs
--
1964 Ampeg Echo Twin ET-1B
Reverb
$1,250.00
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- similar to the ET-1 Echo Twin, except has an eight-tube chassis with 4 X 6SL7 preamp tubes, 4 X 7591A power tubes and solid-state rectifiers, available in Blue Check covering with a gray grille, mfg. 1963-64.
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- 12W, 1-12 in. speaker, add-on reverb unit that can also be used as a stand alone guitar amplifier, four tube chassis, preamp: 1 X 6D10, power: 2 X 7591, rectifier: 5Y3GT, single channel, top control panel, two inputs, two knobs (v, tone),...
- similar to the ET-2 Super Echo Twin, except has an eight-tube chassis with 4 X 6SL7 preamp tubes, 4 X 7591A power tubes and solid-state rectifiers, available in Blue Check covering with a gray grille, mfg. 1964 only.
- similar to the EJ-12 Echo Jet, except has revised electronics/preamp sections, EJ-12A replaced the EJ-12 in early 1965 and the EJ-12D followed, mfg. 1965 only.
- 30W (2 x 15W stereo with two separate power amps), 2-12 in. Jensen speakers, guitar/accordion combo, 10 tube chassis (two power tubes and one rectifier for each power amp), preamp: 4 X 6SL7, power: 4 X 6V6, rectifier: 2 X 5Y3, two channel...
- 6W, 1-8 in. oval speaker (early models), 2-4 in. speakers (later models), add-on reverb unit that attaches to a separate amplifier with alligator clips, three tube chassis: preamp: 1 X 6SL7, power: 1 X 6V6GT, rectifier: 5Y3, single channe...
- 30W (2 x 15W stereo with two separate power amps), 2-12 in. Jensen speakers, guitar/accordion combo, 10 tube chassis (two power tubes and one rectifier for each power amp), preamp: 4 X 6SL7, power: 4 X 6V6, rectifier: 2 X 5Y3, two channel...
