ITT: Post tools, objects, whatever /diy/ items you don't know are and get answered. Threads for simply identifying things get started so often and aren't needed
pic related, found it in my garage likely left by the previous owner. What is it? Would it be useful for a homeowner + hobbyist woodworker?
this is a digital multimeter. the average homeowner could use this to check electrical outlets to verify function, test batteries, probe rectal temperature, ect. if at all possible, kill yourself with it. would be an excellent news story
More specifically, a cheap (around $20) multimeter with a temp probe currently plugged in instead of voltage probes. Might be useful. If there are some other probes around for it a common useful function would be the audible continuity function (red setting, lower right of knob) as it simply means the meter will beep when it sends a trickle of power all the way through something. Use for diagnosing broken power cords and the like.
>/diy/ items youyou don't know are
Didn't read about it, I actually know what they are and have used
I don't know why my pictures are rotated tho
metal stake for slaying metal vampires
this one is for relatively soft metal vampires
If I were to use OP's tool to test for a shitty circuit board, I won't get electrocuted, will I? My electric water heater keeps tripping the circuit and I think that maybe 1 of the 2 poles is messed up. I don't want to start fucking with the heater until I'm sure it isn't the circuit breaker.
Was by my father-in-law during holydays. He was physics teacher, and had a nice collection of physics instrument, but we could not identify one (he has memory trouble now...).
It looks like an optical device : it has a small glass window, with a filamanet behind. Two electrical binding posts are available to connect the filament. Two screws seems to allow adjusting horizontality.
What is this instrument for ?
A gratuated knob allow to adjust filament alignement.
A tool is present in the box (to place a new filament in the device ?).
probably just a key for something. it reminds me of a water bib key, but its not. just go around sticking it in holes until you find one it fits into. maybe it opens a secret passage to wild riches.