[sdiy] frequency counter

[WeAreAs1 at aol.com]

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.