[sdiy] Low Pass Gate is soooOOOOooo sweet

jhaible jhaible at debitel.net
Fri May 10 16:15:27 CEST 2002


> NLS-32SR3 (and SR2 I think, which both are available in Europe from
Farnell) have rise time (to 63% of final 60 ohm resistance @ 5 mA) of 5 ms
and decay time to 100 kohm of 10 ms, after 10 sec the Roff is 25 Mohm.  It
is pretty fast for an optocoupler. They are about 3 EUR, the slow NSL-32 is
about 1.7 EUR. The slow ones look good ones for someting like resonance
control for VCF:s (or something which isn't modulated heavily).
> -Mikko

Ok, then I know where the slow speed (in my application) comes from. I'm not
using it in the ultra-low impedance range for which it obviously was
designed.
No wonder that it is slow when I use it from 2kOhms to the 10MegOhm range.
(Speaking of the PS-3200, where speed is not that much of an issue anyway.)

Thanks Mikko for the data.

JH.






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