I'm not familiar with this model, but I used to use Transistor Devices loads and power supplies while I worked in a cal lab at a Navy base years ago. ?Transistor Devices loads were always pretty rugged instruments; I don't remember ever having to repair one.
I wouldn't have any issues buying a TDI load if I were looking for one.
Cheers,
Dave M
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I am looking at a DC electronic load and have come upon a Transistor Devices Dynaload DLF50-85-500, does anyone have experience or thoughts on this?