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volume control for clock

Discussion in 'Electronic Basics' started by Socrates, May 21, 2008.

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  1. Socrates

    Socrates Guest

    Hello,
    I have an electronic quartz clock with chimes that needs a volume control.
    It has a 2 1/4 speaker and is way too loud for the room it is in. Is there
    any place that makes a inline volume control that I might be able to use to
    adjust this so it wouldn't be so loud. Please reply to the group.
    Thanks, Marty
     
  2. Lord Garth

    Lord Garth Guest

    Place a variable resistor in parallel with the speaker and adjust until you
    get a
    reasonable volume. You can then replace the variable resistor with a fix
    resistor of similar value.
     
  3. If it's merely a clock, chanced are good that it's a piezoelectric
    transducer, ie quite high impedance. So he may need to start with
    quite a high value of resistor.

    Michael
     
  4. Lord Garth

    Lord Garth Guest

    He said 2.25" speaker so maybe not!
     
  5. He did, I missed that.

    It seems odd though, because in a straight alarm clock (as opposed to
    a clock radio) all the ones I've looked at use a piezoelectric transducer.


    Michael
     
  6. Lord Garth

    Lord Garth Guest

    I'd agree, it seem that only clock radios still use a speaker for the alarm.
    I do like John's approach to balance the load impedance however. This
    is an L pad.
     
  7. neon

    neon

    1,325
    0
    Oct 21, 2006
    in parrallel you are kidding right?
     
  8. neon

    neon

    1,325
    0
    Oct 21, 2006
    add a pot in series with the speaker not in parallel.
     
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