Fender Silverface Super Reverb

May 31, 2011 in Amplifiers
Fender Super Reverb Silverface
Schematic(s) super_reverb_ab763.pdf, super_reverb_ab568.pdf, super_reverb_aa1069.pdf, super_reverb_aa270.pdf
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Model/Circuit Number: AB763, AB568, AB569, AA1069, AA270, AA1070
Years of Production: 1968 – 1981
Era: Silverface
Configuration: Combo
Controls: Silver, forward facing w/ blue labels
Knobs: Black skirted with chrome center, numbered 1 – 10
Faceplate

  • Front: Normal: In, In, Bright Sw, Vol, Treb, Bass – Vibrato: In, In, Bright Sw, Vol, Treb, Mid, Bass, Rev, Speed, Intensity – Pilot Lamp
  • Rear: AC Outlet, Ground Sw, Fuse (2A), Power Sw, Standby Sw, Speaker Jack, Ex. Speaker Jack, Vibrato Jack, Reverb Jack, Reverb Out, Reverb In

Cabinet

  • Dimensions: (68-69): 25½ x 25½ x 9¾, (70-81): 24½ x 25 x 10
  • Hardware: Large Chassis Straps 5 5/8”, 19” Tilt-Back Legs
  • Handle: Black Strap
  • Feet: Glides(68-71) or Casters (72-81)
  • Corners: Corner Protectors

 

Covering Material

  • Tolex/Tweed: Black Tolex
  • Grill Cloth: Blue sparkle grille cloth w/ aluminum frame (68-69), w/o aluminum frame (70-81)

Logo: Grill mounted, raised, chrome & black script
Weight: 86 lbs.
Speaker

  • Size: 4 x 10
  • Impedance: 2 ohms
  • Model: Oxford 10L6, CTS 10” (AlNiCo or ceramic) or Rola 10” ceramic(For more info, check out the Jensen Replacement Speakers)

Effects: Reverb, Tremolo
~Watts: 40 or 70 watts
Tubes

  • Pre amp: 7025
  • Power: 2 x 6L6GC

Bias: Fixed, adjustment pot (AB763) or balance pot (all others)
Rectifier: 5U4GB , Some later production models seem to have come without the 5U4 rectifier and had solid state rectification instead.

Comments: Fender added int he Master Volume control with pull-knob Boost in 1975. At this same time, the logo lost it’s tail and power was boosted to 70 watts.

  • Fanzappa

    there has to be another schematic for the non tube rectified version. also, some master volume circuts have a middle tone control.

    • Whittele

      The 70 Watt UL SS recto model can be found at schematic heaven.

    • John

      The 3-band EQ on the normal channel was introduced in 1978.

    • M_orbe

      I have the schematics for the amp you have, with the pull switch. I have a 1981 super reverb i got the schematics from fender customer support due to schematics heaven not having the correct one. I can forward it to you, if you have not yet found it. Just let me know.

  • Al Swearengen

    My Super is 135W.  I think it is a ’79.  I’ll visit it when I return home to folks house next week, where it has sat, unplayed, for 20 years. (It was a pain in the butt to move every 2 years in my nomad years.)  I’ll get the serial and snap some pics.

    • John

      Late 70s ultralinear Super Reverbs featured 70W/RMS of overall power. 

      If your amp is a 135W model, then it’s a Super 6 Reverb equipped with six Oxford 10L6s with an impedance of 10″/5.2Ω. Some Super 6s were also available with CTS 10″ AlNiCo’s.

  • JAC

    Not sure what year mine is but it is a 45 watt amp.  It has the boost on it also. 

  • JAC

    I find it hard getting accurate information on these amps.  There is alot of false info on both the internet and in books.  The most accurate info I have found so far on Silverface Super Reverbs is in small rectangular book called The Fender Amp Book by John Morrish.  Fender Amps by Teagle and Sprung is a good book, but take it with a grain of salt.  The part about Silverface SRs suggests that in 75 or 76 they went to 70 watts with the addition of the Master volume with the boost,  this is not true.  I have an SR with the Master/Boost and it is 45 watts.  I know there are others out there with the same as mine.

  • John

    A 3-band EQ for the Normal Channel and a Line-Out jack were added around 1978.