[sdiy] JFETs (arrggh!)

[Aaron Lanterman]

On Oct 8, 2009, at 2:08 AM, David G. Dixon wrote:

> I Can anybody here point me to a good source of information on  
> selecting JFETs
> for this application?

You want a very low "on" resistance.

You can never go wrong if you see what parts Ian Fritz chooses: 2N4391  
or PN4391. Hmmm, 2N4391 doesn't seem to show up on findchips but  
PN4391 does.

I believe Ray Wilson lists PN4391 as the FET of choice in his latest  
iteration of his VCO (which I think rolls up a lot of advice from Ian  
and perhaps other folks):

http://www.musicfromouterspace.com/analogsynth/VCO20090724REV0/VCO20090724REV0.html

- Aaron