PAIA?

[Guido Goebertus]

My question:

> O.K. , but do you know anything about the Fatman's VCO outputs?
> Is it a neat sawtooth output? (This is because I like to try the old multi-comparetor/LFO trick on it.)
> 

Andrew wrote:

>Nope! The fatman is a pulse (actually, really a square) wave only output.
>Which is why it has a pretty inflexible sound unmodded... but you can mod it with PWM and assumedly, waveshapers to add tri, saw, or whatever you like. Just be careful, the power supply doesn't look too beefy, you mightwant to put most of your mods on another PS.

Oops... I'm glad you told me that.
I remember some 10 years ago (at least) I was trying to built an analog synth with various CPU timer circuits (6840 etc.) as a DCO connected to a Commodore 64 which was triggering a EG/VCF/VCA at the same time.
I also tried the C64's built in soundchip wich had an 8-bit tri/sq/sine/noise output, but they were very unreliable.
And it all sounded terrible squary.
Is there any alternative, (besides coocking transistors) or should I practise the fine art of waveshaping? :)

Thanx: Guido..