So this tester is (at core) a computer (microcontroller) with software specs of the the chip to be tested, and LOTS of buffered/powered bidirectional I/O pins?
When I worked at "Dolby Labs" as a wireman in Stockwell, Souf Landon.
I went there in the early 80's, quoting for PCB assembly work but they were too tight on price that they would payBack in the day I found a load of Dolby A decoders and manuals in the back of a cupboard at a post production facility. They must have been used on a telecine or some older VTRs. I too was surprised that they were made in Stockwell. Those were the days when everything could be bought from and made in the UK. Except of course for some Sony kit but even that came from a factory in Wales some of the time.
I see it has a USB interface. What does that do? Firmware updates?
Seems to work. I tested a few 4116 DRAM chips, some I knew were fine as they were NOS and I’d used 48k of that batch, and some really crusty ones where I knew at least one was problematic. It found a faulty one and cleared the known good easily enough. The 4116 is a pretty good one to test as it needs the 12V supply as well as +/-5V and it all seems fine powered from an Apple USB2 iPhone charger. I tested a couple of 74LS series logic chips too, and they tested ok. The menu interface is pretty clunky and time-consuming to navigate, but it works and does what I need it to do.
PS Found it a flight-case:
Is that ESD compliant?, plastic/glass is not great for components. If not just put it in an ESD bag before boxing.