1970-1982 Musicmaster Bass

Year:

 1970-1982

Model:

 Musicmaster Bass

Circuit:

 ?

Config:

 Combo

Control Panel:

 Silver, forward facing w/ blue labels

Rear Control Panel:

 70-?: None
?-82: Fuse (?A), Speaker Jack

Front Conrol Layout:

 In, In, Vol/Power Sw., Tone - Pilot Lamp

Knobs:

 70-?: Chrome skirted w/ black "F" center, numbered 1 - 10
?-82: Black skirted w/ chrome center, numbered 1 - 10

Cabinet:

 20¾" x 17" x 9&189;" (52.7 x 43.2 x 24.1 cm)

Cab Covering:

 Black Tolex

Cab Hardware:

 Black strap handle, chassis straps, corner protectors, glides

Grille:

 Blue sparkle grille cloth

Logo:

 Grille mounted, raised, chrome & black script "Fender" w/ tail (70-76) or "Fender ®" w/o tail (77-82)

Weight:

 24 lbs (10.9 Kg)

Speakers/Load:

 1 x 12/8 ohms

Speaker Model:

 Oxford 126PJ4 or CTS 12" ceramic

Effects:

 None

Output:

 12 Watts

Preamp:

 12AX7

Power:

 2 x 6AQ5 (7 pin minature pentode) or 2 x 6V6

Bias:

 Cathode biased

Rectifier:

 Solid State

Phase Inverter:

 Transformer

Comments:

 Fender switched back to the blackface era cosmetics some time in 1980. Musicmaster Bass amps produced between late 1980 and 1982 have a black control panel and silver sparkle grille cloth.