Cgs synth

What kind of waveshape should I see at the Pulse output? On mine it's a very skinny pulse,
almost more of a trigger. Does that sound correct?

All in all I really like this VCO. The stair output is a lot of fun to play with. The pulse
output is also interesting when the CVS input is modulated. I was expecting a PWM effect,
but it's more of a harmonic sweep.

Feature Request: separate trimmers for sine and variable waveshape. I found that if I set
the trimmer to a nice sine-ish wave, the variable waveshape doesn't have much sweep
range. If I set the variable to where it does a nice sweep, the sinewave is fairly gritty.

>What kind of waveshape should I see at the Pulse output? On mine it's a

very skinny pulse,

>almost more of a trigger. Does that sound correct?

If you are referring to the pulse out from the LM3900, yes.

>All in all I really like this VCO. The stair output is a lot of fun to

play with. The pulse

>output is also interesting when the CVS input is modulated. I was

expecting a PWM effect,

>but it's more of a harmonic sweep.

>Feature Request: separate trimmers for sine and variable waveshape. I

found that if I set

>the trimmer to a nice sine-ish wave, the variable waveshape doesn't have

much sweep

>range. If I set the variable to where it does a nice sweep, the sinewave

is fairly gritty.

I know I had separate trimmers for this at once stage... I wonder why I
changed my mind. Space probably. It's a very packed board.

Ken
_______________________________________________________________________
Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

> >range. If I set the variable to where it does a nice sweep, the

sinewave

> is fairly gritty.

I *love* my gritty sine wave! Even properly set up, the sine has a
big notch in it (just like Ken describes in the instructions), and it
provides the perfect foil when used with other sine outputs. There
are other, nearly perfect, sines to be had from other VCO's and VCF's
anyway.

Chub