[sdiy] LFO with two outputs (one being variably phase shifted)

[Harry Bissell Jr]

You can use the circuit Magnus described.

It does not work in spice simulation (and I can't
tell why) but in real life it does work.

Shift the phase, then convert to triangles...

H^) harry

--- Mattias Rickardsson <mr at analogue.org> wrote:

> On 30/03/06, DSL FODA01 <foda01 at epix.net> wrote:
> >
> >
> > I am looking for an LFO circuit that puts out two
> triangle waves (or
> > approximations therof) in which one wave can be
> variably offset from the
> > other one in terms of phase.  It would have two
> knobs - one to control the
> > frequency (say from 0.1 Hz to 10 Hz) and another
> to adjust the phase
> > offset
> > of the second output with respect to the first
> one, say from 0 to 180
> > degrees.  Also hopefully there would be little or
> no interaction between
> > the
> > two knob settings.  If anyone has an idea for such
> a circuit, please pass
> > along...
> 
> 
> Magnus' probably untested "sawtooth phase shifter"
> here might be useful:
> 
>     http://home.swipnet.se/cfmd/synths/schematics/
> 
> 
> /mr
>