No. of Channels
Two-Channel
Amp Type
Tube
Inputs
Three input jacks (two for Ch. 1, one for Ch. 2)
Outputs
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- 25W, 1-12 in. speaker, guitar or accordion combo/piggyback Portaflex design, six-tube chassis, preamp: 2 X 6SL7, 1 X 6SL7, power: 2 X 6L6GC, rectifier: 5U4G, two channels, front silver control panel, three input jacks (two for Ch. 1, one for Ch. 2), six black knobs (Ch. 1: v, t, b, Ch. 2: v, t, b), standby switch, ground switch, power switch, rear panel: two inputs for 8 ohm extension speaker and extension amplifier, illuminated lucite panel with Ampeg logo and optional owner's monogram, detachable leg support for tilt cabinet, available in Navy Random Flair covering with a gray grille (1961-62) or Blue Check covering with a gray grille (1962-65), mfg. 1961-65.
Later models were available with a Lansing speaker and called the B-12NL.
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- 25W, 1-12 in. Jensen C12N speaker, multi-purpose combo/piggyback Portaflex design, five-tube chassis: pre-amp: 2 X 12AX7, power: 2 X 7868/7591A (early models)or 2 X 6L6GC (later models), single channel, front silver control panel, two inp...
- 25W, 1-15 in. speaker, guitar or accordion combo/piggyback Portaflex design, six-tube chassis, preamp: 2 X 6SL7, 1 X 6SL7, power: 2 X 6L6GC, rectifier: 5U4G, two channels, front silver control panel, three input jacks (two for Ch. 1, one...
- 50W, 1-15 in. speaker, Portaflex design, six-tube chassis, preamp: 3 X 6SL7, power: 2 X 6L6GC, rectifier: 5AR4, front silver control panel, four input jacks (two per channel), six knobs (Ch. 1: v, b, t, Ch. 2: v, b, t), ultra high boost a...
- 50W, 1-15 in. speaker mounted in a regular cabinet and 1-15 in. speaker mounted in an extension cabinet, Portaflex design, five tube chassis, pre-amp: 2 X 6SL7, 1 X 7199, power: 2 X 7027A, rectifier: 5AR4, two channels, front chrome contr...
- similar to the B-12X Portaflex, except had a revised circuit with a 6D10 preamp tube replacing the 6SL7, a 7591A power tube replacing the 6V6 for the reverb unit, and 2 X 7027A power tubes for the main unit, and output raised from 30W to...
- similar to the B-15N Portaflex, except had a slightly revised preamp/power amp circuit and a solid-state rectifier, available in Blue Check covering with a gray grille cloth, mfg. 1962-64.
- 50W, 2-15 in. CTS speakers mounted in a tall vertical cabinet, Portaflex design, five tube chassis, pre-amp: 2 X 6SL7, 1 X 7199, power: 2 X 7027A, rectifier: 5AR4, two channels, front chrome control panel, six black knobs (Ch. 1: v, b, t,...
- similar to the B-12XT, except has a 4-12 in. speaker cabinet, available in black covering with a blue/gray grille and chrome trim, mfg. 1967 only.
