[sdiy] Harry LFO trick on Ray wilson's Minisynth

[Harry Bissell Jr]

Yes... that would work. Also looks like the squarewave
would have PWM when the shape was not either triangle
or sawtooth (s) correct?

Give my regards to Anne...

H^) harry



--- Ken Stone <sasami at hotkey.net.au> wrote:

> Check out my Utility LFO circuit. It shows how I
> derive a square wave
> irrespective of the shape of the tri/saw wave.
> Perhaps this can be done on
> your LFO too?
> 
> http://www.cgs.synth.net/modules/cgs58_lfo.html
> 
> Ken
> 
> >Harry's reply :^P
> >
> >The square wave will turn into a very narrow pulse.
> >This is normal (side effect of the ramp generation)
> >
> >You can use the pulse to trigger envelopes etc but
> >it is no longer usefula as a modulation source
> >
> >H^) harry
> >
> >
> >
> >--- Frédéric Bourgeais <fred at upian.com> wrote:
> >
> >> Re-Sorry for previous mail, this the same
> question
> >> with object,
> >> 
> >> I have a little question:
> >> I modified my EFM VClfo (3080 + tl074, square and
> >> tri output ONLY ), to 
> >> obtain ramp LFO.
> >> 
> >> I used the Harry trick on the Ray wilson's
> Minisynth
> >> , using 2 reversed 
> >> diodes near of Triangle capacitor. It's really
> nice
> >> and work fine, but 
> >> only on tri/ramp output. If the switch is in
> "Ramp"
> >> position, the 
> >> square output don't works !
> >> 
> >> Is normal ? ( that's why EFM VcLFO use 1/2 TL074
> to
> >> provide Ramp signal 
> >> ? )
> >> Or reversing diodes, or something else could
> raise
> >> the square ?
> >> 
> >> Thanks
> >> ++Fred
> >> 
> >> 
> >
> >
>
_______________________________________________________________________
> Ken Stone   sasami at hotkey.net.au or
> sasami at cgs.synth.net
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> <http://www.blaze.net.au/~sasami/synth/>
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> 
> 
>