[sdiy] does anybody want CEM chips?

[Greg Montalbano]

>
>>1) are there any better circuits than the Paia-provided ones for testing 
>and using these chips? i'm thinking in terms of best performance (i 
>might keep one of each), and the least possible risk to the chips, 
>because i've heard those designs are a bit sketchy.

I've used the 3320 filter chips to make a clone of the SCI Pro-One LPF ( a
very simple application that sounds REALLY good), Craig Anderton's Multiple
Identity Filter (a bit strenuous to lay out, but fairly easy to build
afterwards), and a number of voltage controlled phasers (just keep
cascading those sections....).

The ADSR chips have easily realized provisions for voltage control of
attack, decay & release (for all the modular folks in the audience);

The VCA chips have been used in a number of voltage controllable mixer
circuits (don't have any available myself, but I'm sure someone on the list
could point you towards one).

The VCO chips -- some folks frankly don't like them, for reasons of sound
and reliability.  I've always thought they sounded fine, & have never
experienced the problems others have reported.  In any case, they can be
used for some KICK-ASS voltage controlled LFO circuits 
(including Anderton's "hypertriangular" LFO circuit).


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