[sdiy] frequency counter

[Scott Gravenhorst]

Oh yes, the divider works with any frequency within the range of the logic type
used.  I used 4000 series CMOS logic parts for mine.  It works from subaudio to
well into megahertz.  The input needs only be a logic level rectangular, doesn't
need to be square if I remember correctly (the JK flipflops - 4027 - are positive
edge triggered).  Output is square.

WeAreAs1 at aol.com wrote:
>
>In a message dated 6/26/04 10:19:02 PM, music.maker at gte.net writes:
>
><< There are circuits that can divide by numbers other than powers of 2.  I
>figured out a circuit for a symmetrical output divide by 3. >>
>
>By "symmetrical output", do you mean square wave input > square wave output?  
>Does it work with any frequency, or are there frequency selective components 
>involved?  It sounds like this could be a good alternative to the typical 
>octave divider circuit.  What pitch interval does it make?  (I'm hoping that it's 
>a perfect 4th or 5th, and not the dreaded tritone)
>
>Mike B.
>

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