[sdiy] Suboctave using 4013; triggering problem

[Ken Stone]

Look here:

4024 base suboscillator
http://kato.sai.com.au/catgirl/synth/modules/subosc.html
4013 based "shift register"
http://kato.sai.com.au/catgirl/synth/modules/comparator.html

Ken

>There was a thread a while back about sine wave suboctaves. I'm
>attempting to build one, and I'm having real trouble with intermittent
>triggering of my 4013 D flip-flop. Right now I'm just breadboarding.
>I've got an LM311 output (4.7K to +5v) driving the clock input, and the
>R and S inputs grounded. Originally I just had the Qbar output tied
>directly to the D input, but also tried an RC filter (2.2K and 220pF).
>I'm still getting intermittent triggering.
>Any suggestions?
>
>
>-- 
>Scott Bernardi
>sbernardi at home.net
>
>
_______________________________________________________________________
Ken Stone   sasami at blaze.net.au  
Modular Synth <http://kato.sai.com.au/catgirl/synth/>
Catgirl Paradise <http://www.anime.net/~kens/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>