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ELECTRIC TUBE AMPS: BASSMAN SERIES

For the Bassman 300 PRO (Current Mfg.) refer to the Bass Tube Amps category.

Models (13)

BASSMAN (T.V. FRONT)

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- 26W, 1-15 in. Jensen speaker, tube chassis, preamp: 2 X 6SJ7, 6SL7, power: 2 X 6L6, top chrome control panel, two pointer knobs (v, tone), closed back with circle ports, chassis is on the bottom of the cabinet, early tweed covering, cloth grille, mfg. 1951-52.
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BASSMAN (WIDE PANEL)

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- 26W, 1-15 in. Jensen speaker, tube chassis, preamp: 2 X 6SJ7, 6SL7, power: 2 X 6L6, top chrome control panel, two pointer knobs (v, tone), closed back with circle ports, chassis is on the bottom of the cabinet, wide panel tweed covering, brown grille, mfg. 1952-54.
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BASSMAN (NARROW PANEL)

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- 50W, 4-10 in. Jensen P-10R speakers, tube chassis, preamp: 12AY7, 2 X 12AX7, power: 2 X 6L6G, rectifiers: 2 X 5U4G, top chrome control panel, four pointer knobs (v, b, t, p), diagonal tweed covering, brown tweed-era grille, mfg. 1954-1961.
Especially clean models may command a premium. Model 5E6 was used until 1955 when the 5F6 was introduced, which had four inputs, a middle control knob, and a single rectifier. In 1958 the 5F6-A was introduced and the GZ34 rectifier was replaced and an added "swamper resistor" was added.
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BASSMAN (BROWNFACE)

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- 50W, 1-12 in. Jensen speaker in a seperate cabinet, tube chassis: preamp: 4 X 7025, power: 2 X 5881, GZ34 rectifier, two channels, brownface control panel, seven brown knobs (Ch. 1: v, t, b; Ch 2: v, t, b, Both: p), cream tolex covering, maroon grille, mfg. 1961-64.
The 1-12 in. cabinet was model 6G6. In 1962, the 2-12 in. cabinet is introduced (Model 6G6-A). Around 1962, a solid-state rectifier was introduced. Tubes in later models may be different, and include preamp: 3 X 7025, 12AT7, and power: 2 X 6L6GC. Silicon rectifiers were also used. In 1964, the presence switchwas repalced by abright switch (Model AA864).
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BASSMAN (BLACKFACE)

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- 50W, 2-12 in. Jensen speakers, tube chassis, preamp: 3 X 7025, 12AT7, power: 6L6GC, GZ34 rectifier, two channels, blackface control panel, dual inputs, six silver knobs (Ch. 1: v, t, b; Ch. 2: v, t, b), black tolex covering, silver grille, mfg. 1964-68.
In 1967, the speaker cabinet was replaced by a larger, vertical design. Some early models may still have the presence control instead of the bright switch.
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BASSMAN (SILVERFACE)

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- 50W, 2-12 in. Jensen speakers in a separate enclosure, tube chassis, preamp: 3 X 7025, 12AT7, power: 6L6GC, GZ34 rectifier, two channels, silverface control panel, dual inputs, six silver knobs (Ch. 1: v, t, b; Ch. 2: v, t, b), black tolex covering, silver grille, mfg. 1968-1972.
In 1968, the entire design was changed to the model AA568 (this was probably introduced when models switched to Silverface control panels). In 1970, a 2-15 speaker cab was introduced. The Silverface was renamed the Bassman 50 in 1972.
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SUPER BASSMAN/SUPER BASSMAN II

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- 100W, 2-15 in. speakers in a separate cabinet (Super Bassman II has two cabinets, 4-15 in. speakers), tube chassis: 2 X 7025, 12AT7, power: 4 X 6LGC, silicon rectifiers, two channels, silverface control panel, four inputs (two bass and two normal), seven silver-top knobs (Bass: v, t, b, Norm: v, t, m, b) deep and bright switches for both channels, black tolex covering, silver grille, mfg. 1969-1971.
This model was renamed the Bassman 100 in 1972.
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BASSMAN 10

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- 50W, 4-10 in. Jensen speakers, tube chassis, preamp: 2 X 7025, 12AT7, power: 2 X 6L6GC, solid-state rectifiers, two channels, silver control panel, four inputs, eight silver-top numbered knobs (Ch. 1: v, t, b; Ch. 2: v, t, b, m, MV), bs, ds, black tolex covering, silver grille, mfg. 1972-1982.
In 1981, the blackface control panel became standard, and the output was increased to 70W.
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BASSMAN 20

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- 20W, 1-15 in. Jensen speaker, tube chassis, preamp: 2 X 7025, power: 2 X 6V6GTA, blackface control panel, single input, one channel, four silver-top numbered knobs (v, t, b, m), black tolex covering, silver grille, mfg. 1982-85.
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BASSMAN 50

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- 50W, 2-15 in. speakers in a separate cabinet, tube chassis, preamp: 2 X 7025, 12AT7, power: 2 X 6L6GC, solid-state rectifier, silverface control panel, four inputs, six silver-top numbered knobs (Bass, v, t, b, Norm, v, t, b), bright switch, deep switch, black tolex covering, silver grille, mfg. 1972-76.
In 1974, a Master Volume control was added.
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BASSMAN 70

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- 70W, 4-10 in. speakers in a separate cabinet, tube chassis, preamp: 3 X 7025, 12AT7, power: 2 X 6L6GC, silicon rectifier, two channels, silverface control panel, seven silver-top knobs (Bass: v, t, b, Norm: v, t, b MV), bright switch, deep switch, black tolex covering, silver grille, mfg. 1977-79.
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BASSMAN 100

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- 100W, 4-12 in. speakers in a separate cabinet, tube chassis, preamp: 2 X 7025, 12AT7, power: 2 X 6L6, solid-state rectifier, silverface control panel, four inputs, eight silver-top numbered knobs (Bass: v, t, b, Norm: v, t, b, m, MV), black tolex covering, silver grille, mfg. 1972-79.
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BASSMAN 135

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- 135W, 4-10 in. speakers in a cabinet, tube chassis, preamp: 2 X 7025, 12AT7, power: 4 X 6L6, solid-state rectifier, two channels, silverface control panel, four inputs, nine silver-top numbered knobs (Bass: v, t, m, b, Norm: v, b, m, t, MV), bright switch, black tolex covering, silver grille, mfg. 1979-1983.
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