[sdiy] Osc bank

[Scott Bernardi]

Sounds like a module I did - a quad LFO with saw, tri, sine with independent
frequency and level controls and outputs, a master frequency control, and a
mixer to combine the outputs.
http://home.attbi.com/~sbernardi/elec/og2/og3_quadlfo.html

Peter Grenader wrote:

> Hi guys,
>
> Latest project:
>
> (don't laugh).  I happened by my local electronics shack the other day in
> search of TL072's, which I found and stumbled upon a kit of an audio range
> function generator for a whopping 8 bucks.  Very simple circuit:  One
> frequency pot, square, triangle and filtered sine waveforms.  bought four of
> them.
>
> Built one.
>
> Not bad, not bad...definately not the answer to the world's problems at 8
> bucks a pop.  Within about an half hour, I had rigged up a frequency VC
> control and foound where to fabricate a saw output.  Then I got an idea:
>
> I'm goingt o biuld all four of these within a separate module.  They are all
> going to have their own frequency pot, but they are going to share a VC Freq
> input.  Each will have outputs for all four of the waveshapes and four mix
> outs for the 4 sines, 4 squares, 4 tri's and 4 saws.
>
> I think it'llcome in useful when I want clusters and I can slap it into a 3
> inch wide, 3 RU high space.  Each one of the function generator boards are
> about 1 x 1 inch!  I'm not going to worry about 1v/oct, i'm not going to
> worry about stability, I'm not going to worry about the absolute beauty of
> the waveforms - it's just going to be four voices that can be used when
> non-critical tracking is required.  I'll call it a Osc Bank of Uncertainty
> or something.
>
> tell me if I am nuts,
>
> Peter

--
Scott Bernardi
sbernardi at attbi.com