[sdiy] multiplier help

[Scott Gravenhorst]

I assume you are feeding this a symmetrical square wave?  This circuit will
output a *pulse* train at twice the freq of the input square.  However, those
pulses are narrow and won't do the double thing again, except perhaps at a
certain frequency.  Essentially, this works only with a true square input.


"Michael Ruberto" <frankentron at hotmail.com> wrote:
>
>I thought I had my multiplier circuit working properly until I tried to add 
>another octave. see schematic:
>http://frankentron.freezope.org/multiplier.gif
>
>the circuit works, I put in 150Hz and it gives 300Hz. unfortunately when I 
>try to daisychain the signal into an identical next stage I still get 300Hz 
>instead of 600Hz. >:-(
>I don't have an oscilloscope at my disposal so I tried to sim the circuit in 
>EJB. however, EJB simply doesn't get it.
>
>any suggestions?
>
>~M
>
>
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