Anybody ever used a J310 JFET transistor for anything?

[kothoma]

Um, anybody ever used a J310 JFET transistor for anything?
I guess it could successfully be used for buffers. I'm not very good at reading transistor data sheets. Could the JFET be used for preamp gain stages?

[Thomas_H]

It has 24-60 mA idss. That one needs a lot of power. I never used one with those specs.

[kothoma]

OK. Isn't Idss an upper limit? How does it affect the design?

[Thomas_H]

No, you need to run the JFET at its working point and then idss will be in that range.
I just run it through the fetzer valve calculator and it sais gain will be -14dB.
http://www.runoffgroove.com/fetzervalve.html

[kothoma]

-14dB, that's 80% loss, right?
In other words: bad news.
Now I really wonder what you could use a J310 for.