[sdiy] Best Way to limit control voltage

[Kevin Lightner]

>Why using Zener diodes when normal diodes should do the work?
>
>Check Grant's last Scheme:
>
><http://www.musicsynthesizer.com/DIY/Grant/OTA.html>http://www.musicsynthesizer.com/DIY/Grant/OTA.html

These diode are indeed clamping the output, but a zener will not 
conduct until it reaches it's rated voltage. 3080s are also pickier 
in usage (and pricier) than opamps usually.
 From what I can see, this above will rectify everything. With a 
zener, you could pass an undisturbed sinewave, with only the peaks 
being limited past the zener voltage.
Someone correct me if I'm wrong though. I'm no engineer.
More of a "if it works and doesn't draw too much current, it's 
probably ok" school ;-)

Btw, I recently picked up a bunch of NOS TO-5 (metal can) CA3080H OTA's.
If anyone needs some in this round style package, drop me a private email. :)


-- 
Regards,
Kevin Lightner

Myself: http://www.synthfool.com
Service and sales: http://www.moogmusic.com/service.php
Sales: http://www.cluboftheknobs.com
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