Something new(ish)? (Re: 1970's again? (was Re: [sdiy] pro EQs))

[James Patchell]

Ideal Diode function generators....

See:

http://www.oldcrows.net/~patchell/archives/idealdiode.html

and

http://www.oldcrows.net/~patchell/synthmodules/shaper.html


At 09:09 AM 12/31/2004 -0500, Anthony Ankrom wrote:
>I have read about something that I don't think anyone's ever applied to 
>synth work, but it might be
>interesting.
>
>Just the other day I stumbled across an old article about "non-linear 
>transfer functions". The circuits in the article
>used very large arrays of "forward biased" diodes in the feedback loops of 
>op-amps. It said forward biased but
>the diodes were "pointing" the same way as the op-amps so I would think 
>this would be reversed biased, but hmm
>maybe it was because it was in the inverting input?
>
>And the arrays seemed to be strings of diodes of varying/increasing length 
>in parallel. Like the first was one in
>parallel with a string of two in parallel with a string of three and so on 
>- with variations on this theme.
>
>The aim here was some analog computing application, but isn't that what 
>analog synths are in a nutshell?
>They're analog number crunchers with audio user interfaces.
>
>

         -Jim
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