1968-1982

Configuration: Combo
Power: 100 Watts (1968-1976) 135 Watts (1977-1982)
Effects: Reverb, Tremolo

SCHEMATICS

• Twin Reverb AC568
• Twin Reverb AA769
• Twin Reverb AA270
• Twin Reverb 100W
• Twin Reverb 135W

LAYOUT

• Front Panel (68-71): "Normal" In, In, Bright Switch, Volume, Treble, Middle, Bass - "Vibrato" In, In, Bright Switch, Volume, Treble, Middle, Bass, Reverb, Speed, Intensity, Pilot Lamp
• Front Panel (72-83): "Normal" In, In, Bright Switch, Volume, Treble, Middle, Bass - "Vibrato" In, In, Bright Switch, Volume, Treble, Middle, Bass, Reverb
• Back Panel: AC Outlet, Ground Switch, Fuse, Power Switch, Standby Switch, Speaker Jack, External Speaker Jack, Vibrato Jack, Reverb Jack, Reverb Out, Reverb In

CABINET

• Dimensions: 20 x 26 x 10½
• Tolex: Black
• Grill Cloth: Blue / White / Silver
• Logo: Grill Mounted, Raised, Chrome & Black Script
• Handle: Black Strap
• Feet: Chrome Glides (68-71) or Casters (72-82)
• Corners: Chrome Corners w/ Lip
• Knobs: Black Skirted w/ Chrome Center, Numbered 1 - 10
• Hardware: Large Chassis Straps 5 5/8''

Reproduction Silverface Twin Reverb Combo Cabinet

SPEAKERS 

• Size: 2 x 12
• Impedance: 4 ohms
• Model: Oxford 12T6, Utah 12 (For more info, check out the Mojotone Replacement Speaker Guide)

 TUBES

• Pre amp: 7025
• Power: 4 x 6L6GC
• Bias: Fixed, Adjustment Pot or Balance Pot
• Rectifier: Solid State

Comments: A master volume was added in 1972. Other late seventies circuit changes included a Line Out jack, hum balance pot, and a pull boost sw. Fender switched back to the Blackface era cosmetics some time in 1980. Twin Reverbs produced between late 1980 and 1982 have a black control panel and Black / White / Silver grill cloth.