69 Super Reverb?

Discussion in 'Amp Tech Center' started by boogieman75, Jun 8, 2021.

  1. boogieman75

    boogieman75 TDPRI Member

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    New amp day! Can anyone tell me what circuit this is? I am guessing it is an AB568.

    Looks to be an early 69...

    Fender did some wacky stuff back then. Drip edge, Black line, Tube chart all pointed to AB763 in my mind.

    It sounds fantastic - 2 ceramic oxford - 1 alnico CTS and 1 ceramic CTS

    I think I am going to leave the circuit as-is for now - I also included what has been done to it that has been documented last year. Looks like the death cap has been removed and a new 3 prong cable has been installed and the Electrolytic capacitors have been replaced. Other than a few cap replacements she looks pretty clean!

    Enjoy!


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  2. AlbertaGriff

    AlbertaGriff Tele-Afflicted

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    Hm interesting... Funny that most of the amp dates to early-mid '68 except for that PT, which is the 18th week of '69. And it's got all blue molded caps on the board...
     
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  3. boogieman75

    boogieman75 TDPRI Member

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    Yes and only one dog turd!:D Do those solder joints look original to you on the blue molded caps?
     
  4. AlbertaGriff

    AlbertaGriff Tele-Afflicted

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    Hard to tell from here. Electrolytics have been replaced so I'm sure some solder joints have been touched up.
     
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  5. Cosmic Cowboy

    Cosmic Cowboy Tele-Holic

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    Such a great amp. Love a SR. Some of the posters above pointed out the replaced stuff. Someone loved that amp...it looks like.
     
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  6. Denton

    Denton Tele-Meister

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    Very cool! Silver face Fenders are like porn to me. There was a 68 SR on CL a couple weeks back for $875. Hard not to go get that, but I have a 71 VR and a 68 Showman head and I’m flat broke so it got away.
     
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  7. LOSTVENTURE

    LOSTVENTURE Friend of Leo's

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    I lived with one of those all through the 70's. But, my favorite thing about the amp was how much lighter it was compared to my Dual Showman.
     
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  8. peteb

    peteb Friend of Leo's

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    That is the AB568 with fixed and cathode bias on the power tubes.


    There have been a lot of questions about that type of bias, and most examples have had the cathode resistors removed.




    What’s not to like like about a little cathode bias with your fixed bias?
     
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  9. boogieman75

    boogieman75 TDPRI Member

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    Thanks all! I may experiment with the speakers next. I have a pair of re-coned evm10m-s series II and an original pair of Jbl e110-s. A new baffle would need to be constructed for all 4 but I may start with one ev and one jbl in a cross pattern with 2 of the other speakers.
     
  10. Lowerleftcoast

    Lowerleftcoast Friend of Leo's

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    That PT date and the long length of the wires makes me speculate it may have been a warranty replacement. This amp may be a '68??? The amp looks like a fine example of a dripedge with good maintenance tech work. Congrats on the new amp.
     
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  11. Hpilotman

    Hpilotman Tele-Holic

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    Congrats on your Amp and in my opinion the Blackface and Early Silverface Super Reverbs are the best amps Fender ever built.
    My son now has my restored 1970 Super Reverb and I play a new 68 Custom Pro Reverb that weighs 35 LBS.
    I have owned Twins - 4 x10 Bassmans and Bassman Heads- 4x10 Devilles - BF and SF Deluxe Reverbs- 2 X10 SF Vibrolux and none of match up to the Super Reverb for tone and versatility.
    The BF and early SF Vibrolux come very close.
    If you could find a set of the Reverend 1030 Alltone Speakers from the early 2000's they are also a great match up for this amp. [Big Fat clean notes and chords]

    https://reverb.com/item/1427543-reverend-all-tone-1030-10-speakers

    https://reverb.com/item/2550865-rev...aylor-10-8-ohm-speaker-original-not-a-reissue
     
    Last edited: Jun 10, 2021
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  12. AlbertaGriff

    AlbertaGriff Tele-Afflicted

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    That's what I was thinking too.
     
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  13. SoK66

    SoK66 Tele-Afflicted

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    The big power tube resistors give it away as an AB568.
     
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