1955-1957 Twin
(Narrow Panel Twin)

Year:

 1955-1957

Model:

 Twin

Model No:

 5E8, 5E8-A

Config:

 Combo

Control Panel:

 Chrome top facing w/ white screened labels, controls numbered 1-12

Conrol Layout:

 Ground Sw, Fuse (3A), Power Sw, Standby Sw, Pilot Lamp, Presence, Bass, Treb, Vol, Mic Vol, In, In, Mic In, Mic In

Knobs:

 Black pointer

Cabinet:

 Narrow panel, 20½" x 24" x 10½" (52.1 x 61 x 26.7 cm)

Cab Covering:

 Diagonal tweed

Cab Hardware:

 Leather Handle, glides

Grille:

 brown grille cloth

Logo:

 Cabinet mounted, Script "Fender Twin-Amp" on rectangular tag

Weight:

 ?

Speakers/Load:

 2 x 12"/4 ohms (8 ohms each in parallel)

Speaker Model:

 Jensen P12R Or Jensen P12Q

Effects:

 None

Output:

 50 Watts

Preamp:

 Mic: 12AY7
Inst: 12AY7
12AY7 and ½ 12AX7 shared by both channels

Power:

 2 x 6L6G

Bias:

 Fixed bias, nonadjustable

Rectifier:

 2 x 5U4GA

Phase Inverter:

 ½ 12AX7 (split load)

Comments:
  • Speakers were moved to the lower right and top left corners of the baffle.
  • There were several circuit changes to model 5E8 including the addition of a DC filter choke and a second negative feedback loop for the tone circuit.
  • A selenium rectifier is used in the bias circuit.
  • Model 5E8-A removed the treble section of the tone circuit from the second feedback loop.