Just have a question before i start, about the jfets used. I believe they have to be pretty well matched.
how do i match jfets.... my dmm has a bipolar tester, but i dont think it will do a jfet.
This oughtta do it:
http://www.geofex.com/FX_images/fetmatch.gif
so im measuring voltage right? ill print that out and give it a try.
i am really starting to have a love hate relationship with jfets.