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<TITLE>Re: [sdiy] Best Way to limit control voltage</TITLE>
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Apex Electronics has a ton of metal 3080's...at least they did about six months ago. <BR>
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-P<BR>
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Kevin Lightner wrote:<BR>
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<BLOCKQUOTE><BLOCKQUOTE>Why using Zener diodes when normal diodes should do the work?<BR>
Check Grant's last Scheme:<BR>
http://www.musicsynthesizer.com/DIY/Grant/OTA.html<BR>
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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.<BR>
>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.<BR>
Someone correct me if I'm wrong though. I'm no engineer.<BR>
More of a "if it works and doesn't draw too much current, it's probably ok" school ;-)<BR>
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Btw, I recently picked up a bunch of NOS TO-5 (metal can) CA3080H OTA's.<BR>
If anyone needs some in this round style package, drop me a private email. :)<BR>
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