There is a Keithley 2602 SMU offered by zhoefler in the bay. Starting bid: 1190,- EUR (NAWTS)
https://www.ebay.de/itm/403162060138
![](https://i.ebayimg.com/images/g/HYIAAOSw3vxhQZyA/s-l1600.jpg)
I give up. What is a system source device used for?
A digitally controlled power supply that can also measure it's voltage/current with 6 1/2 digits. And it's "4-quadrant" so +- on voltage and current - which also makes it an electronic load.
A true "swiss army knife". And two of them in one case! These range up to 20V/ 1.5A and 200V/0.1A. Also, they are priced like a small car...
These are the original non-letter units, long out of service. I have a similar "A" unit, but these are out of service as well. Only the newest "B" units still get service from keithley AFAIK.
Edit: I should add that they are superior to a normal DMM, as since they are power supplys you can set the current to zero - as long as you are inside the +-200V compliance range "no" current will flow in/out of the device - which makes them a lot higher impedance (infinite in theory) than the 10Meg of the usual DMM.