Hello everyone!
So today I bought a NOS rebranded digital multimeter, by a now dead electronics company, sold by a used gear broker. It is a "custom" version of the quite ooold 50k counts Mastech MS 8218, custom being the color blue instead of green and of course the IS logo on it.
I actually know zilch of the company that imported this DMM in Italy, however the price was so frigging good (50 Euro each) for the DMM, nylon carry bag, reasonably good probes, the optical to RS232 cable for PC connectivity and SW CD, that I purchased two of them!
I took some pics of the DMM as it came - it even included six AAA batteries, that obviously leaked, luckily they were inside a plastic bag so no damage done. These DMM must have been in storage for a huge amount of time.
I could not wait so I compared the 10K "reference" resistor I built some time ago and a 10V LM399AH based "reference", with a calibrated Agilent 34401A; the results are quite surprising, the thing seems to be good! Caveat, I had not done proper burn in or let anything heat up for hours, the 10V ref was on for just 20 minutes, and the 34401 as well.
All in all I am really happy about these meters!
Edited to remove duplicated pic