[sdiy] simple lfo circuit ?

[harry]

I think a bridge rectifier and a zener would fix that easily. Or use the
741... it clips pretty symmetrically.

H^) harry

Tom May wrote:

> My problem with the ASM-1 LFO is the duty cycle is not 50%, unless you
> can find an opamp with a symmetric output swing at each rail.  Perhaps
> a rail-to-rail opamp would fix things, as long as your supply rails
> were properly adjusted.
>
> fTom.
>
> Mountain Man <mtman at cloud9.net> writes:
>
> > Of course, Darren, my pleasure :) I settled on the ASM-1 LFO.  It is
> > a *very* simple circuit, and produces both a square and triangular
> > output, and has only a single rate control (which is what I was
> > looking for, since I'm trying to cram a bunch of stuff into a teeny
> > control panel).  I've included the link to the ASM-1 homepage below,
> > you'll find the LFO schematic linked to from near the bottom of the
> > page.  Hope this helps :)
> >
> > Elby
> >
> > http://www.it.kth.se/~e93_mda/synths/friends/stopp/#7
> >
> >
> > Darren Reid wrote:
> >
> > > Hi!
> > >
> > > > Actually, I got several replies, Darren :)   I'll certainly study the
> > > > circuits you point out, thanks very much  :)   The folks on this list have
> > > > been great!  I'm learning a lot, and appreciate the openness and
> > > willingness
> > > > to share with a beginner that people here have demonstrated.  What a great
> > > > bunch!
> > >
> > > Cool!
> > >
> > > Well, as I'm a complete raw newbie too...if you find anything interesting,
> > > please share :)
> > >
> > > I'm looking to start building a very simple modular this summer, and need
> > > very simple schematics to do it with.
> > >
> > > -Darren