Varitone inductor specs needed

Discussion in 'Luthier's Guitar & Bass Technical Discussion' started by dharmafool, May 13, 2006.


  1. dharmafool

    dharmafool Supporting Member

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    Anyone have a 1960s Varitone transformer (D.C. inductor) they can measure for me? I need the electrical specs cited below so I can clone the thing in a smaller form-factor:

    Inductance (Henries)
    D.C. current (mil. amps)
    Resistance (ohms)
    Max. operating volts (D.C.)

    Many thanx.

    Paul
     
  2. has-sound

    has-sound Member

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    The original Gibson coil (inductor) was 1.5 Henries. I use the same value in the Varitones that I build.
     
  3. has-sound

    has-sound Member

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    I'm sure that with such a large coil, the capacitor values are way different as well. Large value coils in a small package are very difficult to come by. It's amazing that they even have a 7.2 that will fit in a guitar cavity!
     
  4. dharmafool

    dharmafool Supporting Member

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    Thank you, gents.

    Paul
     
  5. has-sound

    has-sound Member

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    If you use a "make-before-break" or "shorting" switch, you won't need the resistors. The old school switches that Gibson and others used broke the circuit before making the next and that caused a pop. This is why they needed the resistors. Stan
     

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