Another go at the DCR75, this time with a brawny MOSFET (2N7057)
The initial test result:
N-Ch Enhancement mode MOSFET
Red-G Green-D Blue-S
Vgs(on)=2,703V at Id=5,03mA and Ig=1µA
Vgs(off)=2,094V at Id=5,1µA
gm=39,1mA/V at Id=3,1mA to 5,0mA
Rds(on)<1.0O at Id=5,0mA and Vgs=8,0V
with body diode
So far so good. For MOSFETs, it offers only 2 graphs: Id over Ugs with stepped Uds and Id over Uds with stepped Ugs. Results below.
I have to say that it is a great semiconductor tester for repairs and sorting of parts, which it has in common with it's precedessor. It is not a proper semiconductor curve tracer per se. Among the greatest setbacks I've experienced is the missing possibility to de-clutter those graphs exactly where they are most interesting. Also, that you can't store the picture directly. Further, there is some ambiguous or even outright contradictory information in the manual. For example, the range for Ugs is given as 0..8V in one place and 0...10V at another. Next, I'll have to look at the data behind the graphs, which can be exported into Excel. Maybe here lies the possibility to get more out of it. Overall, it is a nice device, but I am not yet sure if it can provide useful data beyond the quicktest.