Per Dave Velzy’s suggestion, I am posting a link to a really useful and cheap electronic component tester available from Ali Express (and probably ebay too). This link is from “all sea store”, which is a good seller on aliexpress that I’ve used before – so buy from them, not some shady seller…
https://www.aliexpress.com/item/High-Quality-Brand-New-LCR-T4-ESR-Meter-Transistor-Tester-Diode-Triode-Capacitance-SCR-Inductance/32740488905.html?spm=a2g0s.9042311.0.0.I5yuix
Anyway, this thing is pretty darn useful. It’s especally useful for:
Inductors: ESR and L (most multimeters don’t do that, and traditional ESR meters are expensive)
FETs and BJT’s - Pop one in, and it will measure, but ALSO show which lead is which (gate-drain-source, collector,gate,emitter), etc.
Best of all, I can read it. So, instead of trying to read tiny rubbed out part numbers or codes, I can just pop it in this guy and get it in “large print”.
For $8, I’d recommend this to any electronics hobbiest. The firmware is Open Source too.
Here’s mine in a hastily printed case.
Lorin
There appears to be an Amazon Prime option for $10.49, delivered Feb 14. However, it has no case.
https://smile.amazon.com/HiLetgo-Transistor-Display-Capacitance-Inductance/dp/B01MYU0QI3
Matthew
I 3d printed that case.
The amazon option looks good (there are some weird variations, and the one pictured is right). I’m just addicted to Ali Express - use amazon if you like (I do that too, but it’s not as addictive). I order and then usually forget about it by the time it comes. It’s like past me traveling forward in time to give myself a gift!
Or BangGood has one for $16 with a nice case included that ships from their US wharehouse…
https://www.banggood.com/LCR-T4-Mega328-Transistor-Tester-Diode-Triode-Capacitance-ESR-Meter-With-Shell-p-1112140.html?rmmds=search&cur_warehouse=USA
BangGood is nice, especially for an order of DongBest brand accessories (not making this up).
Lorin