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VCO

Discussion in 'General Electronics Chat' started by waltsar, Mar 2, 2015.

  1. waltsar

    Thread Starter Member

    Nov 10, 2012
    16
    0
    I can't seem to be able to find an LM566 VCO chip anywhere. Is there an equivalent chip on the market?

    This is a hobby project so nothing too fancy is required.

    Thanks,
    Walt
     
  2. Papabravo

    Expert

    Feb 24, 2006
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    2,727
  3. waltsar

    Thread Starter Member

    Nov 10, 2012
    16
    0
    I'll need a center frequency of about 5KHZ with the ability to vary the frequency 10:1.
     
  4. AnalogKid

    AAC Fanatic!

    Aug 1, 2013
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  5. rogs

    Senior Member

    Aug 28, 2009
    279
    39
    You could use just the VCO section of the 4046 PLL . Control range well in excess of 10:1
     
  6. rogs

    Senior Member

    Aug 28, 2009
    279
    39
    Sadly, most of the chips those guys made are now very hard to find... I bought 10x SSM 2040 in the early 1980s for a project that never got finished. That device become so rare and sought after in recent years, that I got $40 each for them a couple of years ago!

    You could make a nice voltage controlled sine wave oscillator with them though.....
     
  7. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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