Stupid ASM-1 cap question

[Magnus Danielson]

> Hi all,
> 
> just a little question: what's the function of the 18pF cap in the VCO and
> may it's value be altered??? I can't seem to get hold of any more quality
> 18pF while stuffing my second ASM-1 board.

The purpose is to slow down the LM311 so that when the FET is emptying the
cap it will go all the way down before the LM311 stops feeding the FET.

If you can get a sligthly larger (up to say 47pF) you will not suffer.

You can use almost any cap there since it is not soundpath, but keep if 
cheramics if possible... but that recommendation migth be more to my well
developed alergy to them then much else... but they do have a bad response at
high frequencies due to high loss (relative alternatives).

> Another tip for the people who use C.List's frontplate: use a dual pot for
> the VCF inputs in order to stay away from distortion.

How is that?

Please give more details...

> I'll post my first patch soon. It uses maximum amount of modules and NO
> attenuators and together with my hint it'll not distort!

Please... DO!

Christmas Cheers,
Magnus