Fender Blackface Twin Reverb

Model/Circuit Number: AB763
Years of Production:
1963 – 1967
Era: Blackface
Configuration: Combo
Controls: Black, forward facing w/ white labels
Knobs: Black skirted w/ chrome center, numbered 1 – 10



  • Front: Normal: In, In, Bright Sw, Vol, Treb, Mid, Bass – Vibrato: In, In, Bright Sw, Vol, Treb, Mid, Bass, Reverb, Speed, Intensity – Pilot Lamp
  • Rear: AC Outlet, Ground Sw, Fuse (2½A), Power Sw, Standby Sw, Speaker Jack, Ex. Speaker Jack, Vibrato Jack, Reverb Jack, Reverb Out, Reverb In


Covering Material

Logo: Grill mounted, raised, chrome & black script
Weight: 69 lbs.

Effects: Reverb, Tremolo
~Watts: 85 watts

  • Pre amp: 7025
  • Power: 4 x 6L6GC

Bias: Fixed with bias adjustment pot.
Rectifier: Solid State

Comments: Beginning in early 1966 Fender offered JBL D-120F Speakers as an ”premium upgrade” to the Twin Reverb. Some early Twin Reverbs have tube charts specifying 7355 power tubes. It is unclear if any shipped in this configuration.

16 thoughts on “Fender Blackface Twin Reverb

  • July 9, 2012 at 12:36 pm

    I have a 67 TR with original Altec speakers-  417Bs. With humbuckers, the highs chime like bells, and the lows rumble in a deep, authoritative way. I love it.

    • March 5, 2019 at 5:07 am

      I stumbled across a pair of ’64 Altec 417-8H by mere chance, thinking they were some sort high-priced JBL D120s or E120s. But nothing of it! They have remarkably sweet highs and compress nicely at manageable volumes, mids are present. Nowhere as ‘sterile’ or ‘ice-picky’ as usually attributed to JBL. I really think of them as high-powered P12Ns, making a perfect fit for my blackfaced bassman and surf tones.

  • November 22, 2015 at 4:10 am

    Quote “Beginning in early 1966 Fender offered JBL D-120F Speakers as an ”premium upgrade” to the Twin Reverb” In early 1966 Fender Shipped the new JBL D131F (12 inch) JBL Speakers in S.O. (Special Order) Amps. The D131F JBL Speaker is so rare in the Fender Amps only a few have survived. The D120F JBL was first made in the Fall of 1966, any amp with a JBL D120F Speaker in the amp before the Fall of 1966 is not the original speaker to the amp. Many people claim amps to have the original D120F JBL Speakers in them before the Fall of 1966, but they are not well informed. The Beatles, Jimmy Hendrix and The Allman Bros all got the first Twins with the D131F Speakers in Feb of 1966 (PB). My Twin with the factory JBL D131F Speakers is also a PB build. Most of the Sp3ecial Order amps have hand written Tube Charts and the Production line has ( S.O.) for the Special Order.

    • March 15, 2020 at 12:16 pm

      I have a 1964 TR with original D131Fs and the 7355 tube chart.

  • August 1, 2017 at 1:12 pm

    I’d have to say that the Fender Twin is THE ultimate guitar amp of choice for any serious lead guitar player on the planet. At its introduction, and since, it is a hoss of an amplifier that will do anything asked of it. RIP Leo Fender. You were a genius.

  • March 2, 2018 at 2:11 pm

    Can someone help with dating my Fender Twin Reverb? Info is as follows:
    Blackface Fender Twin Reverb AB763, Corona, California.
    Speakers are Fender special made in Italy, frame number..C12K 8ohms each
    Transformers code A037610
    Serial number: AC060417
    Has tilt back legs
    Thank you for any help

  • February 15, 2020 at 9:13 am

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  • April 27, 2020 at 12:42 am

    I have a Twin 65 Reissue. And I love it!

    Is it Possible to remove 2 output tubes to Lower the sound, without hurtig the amplifier?

    • May 22, 2020 at 7:38 pm

      Yes refer to YouTube (Fender Twin Mods). About a 4 min video.

      • May 22, 2020 at 7:42 pm

        Sorry that YouTube channel for the Fender Twin is. (Easy Fender Twin Reverb Mod)

  • April 8, 2021 at 8:16 pm

    I have a 1964 twin reverb with tube replacement chart indicating 7355 power tubes.
    Amp still has original 7355 tubes shipped from factory.


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