Hi Michael and Jeff
Thanks for your comments and information!
At this point, I'm probably running an unmatched pair, one having been taken from circuit A and one from circuit B. Triggering works fine (exception in another post) for the calibration bar and a strong 40 MHz signal. I don't know if it's working perfectly because I haven't given it a challenging triggering situation. Do either of you know what tends to happen when one JFET operates on one side of the knee and the other on the other side of the knee?
I don't have a transistor curve tracer, but I could probably rig up something to hold Ids at 10.5 mA and see what happens when I apply a signal to the gate.
I sent an enquiry to Sphere and haven't heard back yet. I'm skeptical of buying semiconductors on ebay, but maybe I should just give it a try and ask to return them if they don't work.
Cheers
Halden
