If your hobby activities extend to electronics it's likely that you have a collection of reclaimed and/or unmarked components that have never been tested. Faced with exactly this problem, I recently bought a smart electronic component tester from Amazon...
https://www.amazon.com/gp/product/B071Y5CHPK/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1It comes as a kit priced at $15.50. All the electronics are already done; the kit part is just the assembly of the included plastic case. No instructions are included but they can be downloaded from the web. Its power supply is a 9 volt transistor battery.
Basically, this 4 x 6" box allows you to insert any two or three wire component into its ZIF socket, press a button and read on the backlit screen what the component is, its pin assignments, and its associated value (LCR) or gain, etc. for active devices.
There are a number of very poorly done Youtube videos describing its use in detail. This one...
is the best of the lot.
Get one of these and feed your electro-nerdy impulses. Seriously, it's a great tool and cheap at twice the cost.
Bonus hint:
Kuman, the outfit that makes the tester, also makes hand-size signal generators and oscilloscopes. Probably other good stuff too.
