[sdiy] Low Pass Gate is soooOOOOooo sweet

[mikko.a.helin at nokia.com]

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

> -----Original Message-----
> From: ext jhaible [mailto:jhaible at debitel.net]
> Sent: 09. May 2002 13:14
> To: Joe Kramer; harry
> Cc: >>>marjan<<<; Prototek; synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Low Pass Gate is soooOOOOooo sweet
> 
> 
> >     If it's speed you're after in an opto-isolator, look 
> into some of the
> > Silonex/Audiohm units.  A rep for them told me about a 
> NSL32-type that he
> called
> > their "super" version, with almost no lag time at all.  Not 
> too expensive,
> and
> > Allied carries them.
> 
> I use the NSL-32 in the PolyKorg Clone a lot. It is *very* 
> slow. Would be
> nice for a phaser ...
> 
> JH.
> 
> 
>