I'm back with a question, please. A friend of mine is testing jfets with a TC1, and I have the suspicion that his measurements are not Idss and Vgsoff. Here's a picture
I perused the manual, and it seems to me that's not really Idss and Vgsoff, is that correct? Could it be that his firmware was compiled with the FET_Idss flag disabled?
Are those values shown there the ones obtained with a 680 ohms source resistor, as per the manual?
My T4 with the latest firmware does seem to measure Idss and Vgsoff, plus an extra operating point in the middle. Did I get it right and that's what it's doing?
Actually, I have two questions. I also have a few MMBFJ201 and MMBF5457, and they are both detected as BJT's by my T4, while his TC1 does spit out a reading, what's the deal there, please?