[sdiy] Phase shifters & Compandor chip availability

[Tim Ressel]

To all,

Foist, thanks to all for responding to my query about
SA571 availability. It turns out Signetics still makes
them.

Here is why I asked. I've been studying phase shifter
schematics on Grant Richter's web site:
http://www.musicsynthesizer.com/Diode%20Phaser/Diode%20Phaser.html

I was interested in the ARP Quadra schematic. Does
anyone know why a compandor was included? I figure its
either for noise reduction or dynamic range
enhancement, possibly both. Running the signal thru 28
transistors has got to be noisy. 

Has anyone built one of these beasties?

--tr


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