Due to the good response of the slide rules thread, I thought I'd sort of resurrect an thread on old school tools. I.E. tools that still do the job but are older technology considered obsolete by younger people and older, more tech-chasing guys.
Old school doesn't necessarily mean non-digital (although many such vintage tools are analog-based) but I would say anything I would call OS would not be wireless. IR temperature guns are the separating point. When they first came out they were like the point of the spear. Now they're almost ubiquitous, everyone makes one but IR reading is definitely 90's technology.
Don't get me wrong - in certain places I'm all-in for modern digital tools. Like CO meters, NCV detectors, pocket digital thermometers are all tools I have and use. But I keep the analog versions handy in case the first line breaks or the batteries die in the middle of nowhere.
Post up you oldies but goodies!
First up is a group of analog meters. Triplett voltometer and a Simpson 260.