In video #22 a month or two back I built a Tauntek logic IC tester. These are firmware upgradable, and while there were no new features in the latest release that I felt a burning desire to have, I thought I’d run through the process of doing the firmware upgrade so we could see how it’s done.
This time around I’m building a Tauntek Logic IC tester, which should be useful for testing 74 series logic IC’s I reclaim from old equipment, and also some 4000 series IC’s. There are other testers out there, like the Retro Chip Tester Pro (which is good for testing RAM/ROM in particular), and in time I’ll probably acquire & build one of those too :-)
A couple of nights back my streaming PC got angry with me. The first night it bluescreened once, but it rebooted and the show went on. The second night, I think Obs crashed once and it bluescreened twice. Initial thoughts were maybe it was a driver or something that I’d installed recently, but that seems less likely now. This morning I created a Memtest86 USB stick and booted into it. Not long after it started throwing memory errors, and 4 hours in it was pretty messy (see pic above). ...
My previous bench PSU (sitting on top of the new one) pissed me off one too many times… The new one comprises a couple of DP50V5A programmable PSU modules from eBay (eBay Link), a 48VDC PSU that I already had, that was already mounted in the case pictured. The case and 48VDC PSU had been used previously to power some other equipment and had a panel meter where the left LCD display is (hence the hole that’s slightly larger than the new PSU module), and a terminal strip where the right LCD display is. Maybe one day I’ll come across a nice new case for it – but today is not that day :-) ...