[sdiy] MPF102 replacements

[David G Dixon]

> Quick question. Mouser shows the MPF102 transistor as "End of 
> Life". There's still several thousand in stock, but can the 
> part be replaced by any N-channel RF JFET or is there a 
> particular part that should be used?

I prefer the 2N5485, myself, because is has a smaller pinchoff voltage.
J310 should be good as well.  A common replacement for MPF102 is 2N5457, but
I don't find that it works that well.

YMMV, of course.