[sdiy] L(cheapo)FO

[Jared Foster]

Thanks for the ideas!
I am too poor to get a real oscilloscope, and the one i made from a t.v. 
burned out my amplifier. But in theory i can look at waveforms with my pc 
audio card. i guess i'll let you know what my bending achieves, erm, when i 
get around to it.

On 6/26/05, harrybissell <harrybissell at prodigy.net> wrote:
> 
> The sine shaper could have asymmetric diodes as well... or use a combo of
> diodes and LEDs instead.
> 
> Probably a better way to mangle would be some precision rectifier after
> the LFO... you could get 2X freq. triangles with a full wave, triangle 
> shaped
> pulses with a half wave etc...
> 
> Go HOG WILD with some variant of the diode breakpoint generator from
> Jim Patchell's Vocal filter... or I might add that Ian Frits has some very
> unique waveform manglers...
> 
> otoh this is an LFO. Maybe these would be more interesting in an audio
> freq. design
> 
> H^) harry
> 
> Michael Ruberto wrote:
> 
> > Jared,
> >
> > There aren't too many things you can do to weird it out. When I was 
> adding
> > the sawtooth converter I accidently connected R14 to pin 8 instead of 
> pin 14
> > which resulted in a very strange asymetric triangle wave. You can also 
> try
> > unbalancing the the sine shaper by making one or more of the resistors a
> > pot. Although that wouldn't be much more interesting than the asymetric
> > triangle I already mentioned. One thing might be worth trying is to 
> connect
> > the inputs of the saw shaper to the output of the sine shaper for 
> half-sine
> > waves.
> >
> > M. A. Ruberto
> >
> > >From: Jared Foster <jaredfoster at gmail.com>
> > >Reply-To: Jared Foster <jaredfoster at gmail.com>
> > >To: harrybissell <harrybissell at prodigy.net>
> > >CC: Michael Ruberto <frankentron at hotmail.com>, 
> synth-diy at dropmix.xs4all.nl
> > >Subject: Re: [sdiy] L(cheapo)FO
> > >Date: Sun, 26 Jun 2005 17:40:00 -0500
> > >
> > >On 6/26/05, harrybissell <harrybissell at prodigy.net> wrote:
> > > >
> > > > Hello Michael
> > > >
> > > > I think you could easily configure this as a voltage controlled LFO 
> ???
> > > >
> > > > interested ??? :^P
> > > >
> > > > H^) harry
> > > >
> > > > Michael Ruberto wrote:
> > > >
> > > >
> > >Speaking of configuring, are any of the parameters variable? that is, 
> which
> > >resistors have to be fixed values, and which can be varied( and will 
> affect
> > >something). Or is it a tradeoff for simplicity? I suppose I could just
> > >circuit bend it. But I prefer method over madness.
> > >
> > >--
> > >
> > >jared foster
> > >"...Free to roam the heavens in man's noble quest to investigate the
> > >weirdness of the universe!"
> 
> 


-- 

jared foster
"...Free to roam the heavens in man's noble quest to investigate the 
weirdness of the universe!"
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