[sdiy] Best Way to limit control voltage

[Peter Grenader]

Apex Electronics has a ton of metal 3080's...at least they did about six
months ago.  

-P

Kevin Lightner wrote:

Why using Zener diodes when normal diodes should do the work?
Check Grant's last Scheme:
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.
:)



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