Super reverb wiring question

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by gsozz, Jun 5, 2005.

  1. gsozz

    gsozz Member

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    I have 2 1973 Fender super reverbs.
    When I plug a circuit tester into the electrical outlet on the back of the amps is shows that they are both wired with the hot and neutral reversed. Is this normal for super reverbs, or should I reverse the wiring????
    The ground switch has no effect on this.
    Please advise...........I would hate to watch my fav. amps go up in smoke.
    Thanks,
    Gsozz
     
  2. tonezoneonline

    tonezoneonline Member

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    For safety's sake you should install a proper 3 prong grounded plug in both.
     
  3. gsozz

    gsozz Member

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    Hi tonezone
    Both amps have a 3 prong grounded plug.
    Thanks
     
  4. RussB

    RussB low rent hobbyist Silver Supporting Member

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    Hmm, maybe the 3-prong cords were wired improperly? :eek:

    Who sells 3-prong courtesy outlets that fit a Fender chassis?
     
  5. claptonisgood

    claptonisgood Member

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    when converting an old Fender, the ground switch should be eliminated (out of the circuit)...the new three prong power cord should have line (black) connected to the fuse, the neutral (white) to the on/off switch and the ground to chassis...i would also disconnect the convenience outlet as well unless you replace with a grounded type
     
  6. gsozz

    gsozz Member

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    Hi Claptonisgood,
    Both fenders are wired with the original 3 prong cords.
    Thanks,
    Gsozz
     
  7. TheAmpNerd

    TheAmpNerd Member

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    Well to be proper and wired to todays standards.
    Yes.

    Black is the small terminal, white the large terminal.
    White side of ground switch is twards outlet,
    Black side of ground switch is next to fuse holder.

    Dave Funk say's it this way [my notes]:

    1. Disconnet the black transformer wire (sometimes white)
    that goes to the side conducytor of the fuseholder (W1).
    Leave it disconnect for now.
    2. Remove the wire (W2) that goes from the AC switch to the
    "Black" side of the ground switch, and attach it to the side conductor of the fuse holder. [Desolder the the black side
    of the ground switch and solder to the side conductor
    of the fuse holder {the side conductor is on top}].
    3. Remove the end of the wire that goes form the center pin
    of the fuseholder to the white side of the ground switch. [desolder the white end of the ground switch and resolder on the
    black side of the ground switch]
    [Now you have the black power lead going to the fuse
    before the AC switch].
    4. Attach the tranformer wire (W1) to the White side to the
    ground switch.

    5. Your done. [almost]

    Desolder the leads on the convenience outlet to:
    white Large blade
    black Small blade.

    Then you are finished.

    Before you begin, draw a diagram of how is it now,
    then draw a diagram of how it will be.

    Double check it before you start any changes.

    hope this helps.
     

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