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- 60W, 1-15 in. speaker, Portaflex design, six-tube chassis, pre-amp: 2 X 12AX7, 1 X 12DW7, 1 X 12AU7, power: 2 X 7027A, solid-state rectifier, front silver control panel, four input jacks (two per channel), seven knobs (three-position response knob, Ch. 1: v, b, t, Ch. 2: v, b, t), ultra high boost and ultra low boost switches for each channel, power switch, standby switch, extension speaker jack, output jack for external amplifier, black vinyl covering, blue/silver grille, mfg. 1971-77.
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- similar to the B-15NC Portaflex except output power was raised to 30W, power tubes were changed to fixed-bias 2 X 6L6GC, a new printed circuit board was introduced and the inside of the cabinet was changed to a single baffle, available in...
- 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,...
- 30W, 1-12 in. speaker and either an oval 4 X 8 in. speaker or 2-4 in. speakers enclosed in a separate cabinet for echo, multi-purpose piggyback/combo Portaflex design, 10-tube chassis: preamp: 5 X 6SL7, 1 X 6SN7, power: 2 X 6L6GC, 1 X 6V6...
- 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...
- similar to the B-15NB Portaflex, except utilized a printer circuit board and the solid-state rectifier was replaced by a 5AR4 rectifier tube, available in Blue Check covering with a gray grille cloth, mfg. late 1964-mid-1965.
- 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...
- 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...
- 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...
