[sdiy] Suboctave using 4013; triggering problem

[tomg@efm]

You are so close, all you need is a transistor...
http://groups.yahoo.com/group/EFM_Synth/files/cookbook/suboct1a.gif

this was recorded with an open mic, so there is noise but you can hear
all three outputs making the rounds..some 4013s work some don't, you'll
have to select one.
http://groups.yahoo.com/group/EFM_Synth/files/cookbook/suboct.wav

Tom



> 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