Calling Ampeg V4BH users!

Discussion in 'Amps [BG]' started by Tim_the_Stoner, Feb 6, 2014.


  1. Tim_the_Stoner

    Tim_the_Stoner

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    Heya :)

    Could someone with experience please tell me what value the Gain potentiometer on a Ampeg V4BH Classic Series from 2003 is? Someone told me it's a 1Meg Audio, but my technician says that's unlikely. I need someone with hands on experience to back me up so I can force him to do what I want him to do with my equipment.

    The original pot is faulty, btw.


    THANKS a 1.000.000 times beforehand!

    PD: If anyone has the schematics I'd be thrice as happy! :D
     
  2. nashvillebill

    nashvillebill

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    Uh, it should be printed on the pot!

    Alternate method is to desolder the pot and measure the resistance between terminals 1 and 3 (even if the pot has a bad wiper, this will work unless the pot's carbon track has been damaged).
     
  3. nashvillebill

    nashvillebill

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    The schematic shows 1M A by the way for the Gain (P1). Master volume is 50K linear, maybe that's what the tech was referring to.
     
  4. hodgy

    hodgy

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    The part number is 70-105-12. Call Loud parts at 1-800-898-3211 ext. 1623.
     
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  6. Tim_the_Stoner

    Tim_the_Stoner

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    There's no value on the pot, only a code. As I don't know the pot manufacturer I cannot see what that code means.

    So, 1meg Audio, as I've been told. Is this like a standard measure for Ampeg Gain controls?

    PS: I cannot call US, I'm located in Spain, EU.
     
  7. eyeballkid

    eyeballkid Supporting Member

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  8. Forrrest

    Forrrest

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    why don't you just measure it? (or is it broken)
     
  9. Tim_the_Stoner

    Tim_the_Stoner

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  10. Tim_the_Stoner

    Tim_the_Stoner

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    Bump...


    So, my tech thought he knew better and put a different value pot in the Ampeg... Now it sounds wonderful but at 1/100th of the volume I'm used to from it >.< I suspect he put 1K Audio, insted of the 1M Audio I asked for.

    Sooooo, back to the tech it goes... This time I'm ordering the spare part!

    Where do you get authentic Ampeg spareparts in Europe?
     
  11. nashvillebill

    nashvillebill

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    Maybe you should think about using a different tech.
     

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