potentiometers log/lin?

Discussion in 'General Electronics Chat' started by kubeek, Sep 20, 2005.

  1. kubeek

    Thread Starter AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    In a datasheet of an effect there are pots written like 100k/A and 50k/B. I am not sure which one is logaritmic, because:
    1)in a magazine was written that A is log and B is linear
    2)i have a logaritmic pot on which is written 10k B
    3)in the datasheet the outgoing audio signal is going from A pot, which should probably be logaritmic
    4)in a datasheet of some manufacter is written that A is linear, B is log.

    Can anyone please help me?
     
  2. Sebi

    Well-Known Member

    Sep 24, 2005
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    The "A" marked pot is linear, the "B" is logarithmic.
     
  3. Gorgon

    Senior Member

    Aug 14, 2005
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    Hi,

    In addition to 'A' and 'B' as Sebi said, you also have antilogarithmic 'C'. Reversed logarithmic curve.

    TOK ;)
     
  4. pebe

    AAC Fanatic!

    Oct 11, 2004
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    ..and semilog and antisemilog.
     
  5. Overclocked2300

    Senior Member

    Apr 24, 2005
    124
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    What is the difference between log and linear pots?
     
  6. Gorgon

    Senior Member

    Aug 14, 2005
    113
    0
    Hi,
    Look at this datasheet, page 55 (starts on p53) Diagram display all curves. (A, B and C)

    http://www.elfa.se/pdf/64/06426217.pdf

    What we talk about is the resistance value, related to viper position.

    TOK ;)
     
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