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Gallien Krueger 700RB-II toroidal transformer

Discussion in 'Amps and Cabs [BG]' started by netmics, Nov 23, 2010.

  1. netmics


    Apr 7, 2010
    Hello there!!!

    I have to repair my amp's toroidal transformer. Does anyone have the schematics of this???

    Thank you!!!
  2. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    You can't repair a transformer. If it's blown you replace it.
  3. Hi.

    Transformers are "repaired" ie. rewound only if either the iron is something really, really special, or the construction is so special, no manufacturer will make one for You.

    I'd make a wild guess that Yours is neither ;).

    But generally:

    If the transformer is potted, there's no chance it can be repaired.

    If an IE core transformer is welded, it can't be repaired either.

    Usually only 1KW and up transformers are even considered for rewinding.

  4. Passinwind

    Passinwind I know nothing. Commercial User

    Dec 3, 2003
    Columbia River Gorge, WA.
    Owner/Designer &Toaster Tech Passinwind Electronics
    How do you know that? Sure it's not any of the other parts of the power supply that typically fail several hundred times more often?
  5. KramerBassFan


    Jan 3, 2009
    Call GK.

    Transformers can't be fixed. You just have to hope they still make them, or you can find OEM one's. You have slightly better odds with power transformers, rather than obscure tube output transformers.

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