"Chiclet" Utility LFO: was RE: [sdiy] Monosynth features poll

[Ian Smith]

> Ian, that's really cool and well thought out. There are lot of patching
> ideas in there, and also perhaps clever ways to "normalize" (pre-patch with
> switchable jacks) a modular system.
>
> This begs the question (at least for me), why not embed dedicated LFOs in
> other modules such as VCFs? As someone pointed out, one TL072 and a few
> passive components does the trick. One could develop a tiny little "utility
> LFO" board for this purpose, perhaps right on the rate pot itself, as a
> "chiclet" type thing...
>

David, the utility LFO that I was most impressed with was Peter Lutz's LFO design that appeared in the Electro Notes Builder's Guide and Preferred Circuit Collection. A similar design also pops up as part of Ken Stone's Utility LFO.

I love the idea of being able to sweep from saw through triangle to inverted saw. Would that shape control and the rate control be enough panel mounted pots? and what should the range of the thing be like? I like the idea of the 0.2 - 2Hz range myself.

-Ian
 		 	   		  
_________________________________________________________________
Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.
http://clk.atdmt.com/GBL/go/196390709/direct/01/