I have tested these and they are not J201 (JFET) or 2SJ201 (power MOSFET). They are NPN transistors. I can still use them as general purpose NPN transistors, but they are not J201 JFET devices.
I have tested these and they are not J201 (JFET) or 2SJ201 (power MOSFET). They are NPN transistors. I can still use them as general purpose NPN transistors, but they are not J201 JFET devices.