[sdiy] multiplier help

Michael Ruberto frankentron at hotmail.com
Fri Jun 21 22:24:19 CEST 2002

I thought I had my multiplier circuit working properly until I tried to add 
another octave. see schematic:

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?


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