OK, I did miss that both windings were the same.The information I have indicates pri and sec both have 12T on 3/4" dia. air core. I guess we can assume the circuit is really designed to "amplify" RF. Can anyone explain how JFET's wired in parallel would do this?
Honestly, I thought it was pretty clear. I named the nodes in the circuit. The same names are written on the diagram and each name has a different color. If you're not colorblind, it should be clear to you.Three traces shown in post #4, no hint as to which points in the circuit they are.
Grounding the sources would change the class of operation and lead to a lot of distortion. because of the lack of feedback and also the transistors being cut off for at least half a cycle.
by Aaron Carman
by Jake Hertz