[sdiy] Best Way to limit control voltage

[Tony Clark]

>  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 ;-)

   I'm quite fond of using zeners myself for limiting voltages.  I use 
this trick in front of A/D converters.  In order to prevent unnecessary 
current draw, I put a very small resistor in front of the zener which 
allows the incoming CV some extra overhead, but the output remains 
clipped quite nicely.

   Cheers,

   Tony

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