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Decipher Pot Code

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by mike shaw, May 9, 2016.

  1. mike shaw

    mike shaw Member

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    I have a Carvin x60 combo amp that has a defective reverb pot. I pulled the pot and noticed the code
    'B-50k (ohm) HL printed on the side. The B-50k should translate to 50k ohm, linear taper but what does the 'HL' stand for. This is one of the smaller sized pots (the threaded housing is around 7 mm).
    Thanks! Mike
     
  2. The Dirty Tube

    The Dirty Tube Member

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  3. mike shaw

    mike shaw Member

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  4. donnyjaguar

    donnyjaguar Member

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    No idea. But I wouldn't worry if the replacement component is of visibly higher quality.
     
  5. mike shaw

    mike shaw Member

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    But will the specs be exactly the same as the original pot?
     
  6. teemuk

    teemuk Member

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    I would use a multimeter to verify taper of the old potentiometer, if possible. Manufacturers use all kinds of coding systems so I wouldn't trust that "B" means generic linear taper.
     
    pdf64 likes this.
  7. mike shaw

    mike shaw Member

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    I don't think I can measure it .... it's in pieces internally.

    I was trying to figure this out and stumbled across some info that the HL may mean that the pot is designed for heavy use. A 'longer life' pot. I hope that's the case so I can move on!
     

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