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Multifunction Meter DIY kit, kuman Mega 328 Graphic transistor Tester, NPN PNP Diodes Triode Capacitor ESR SCR MOSFET Resistor Inductance LCD Display Checker with case and screwdriver K77

When HN users recommended it

1 HN user recommended this in 2019, in one comment.

20072026

Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.

What HN users said

pugworthy linked amazon.com View on HN
in Open Source Electronics Lab for $30, a direct reply to the story

Something I would add to this is the functionality of a component tester.

If you don’t know what they are for, they are cheap little arduino based devices that you can plug a lot of basic components into, and have them identify the component for you. Plug in a resistor, see the resistance. Also works for mystery transistors as well as caps and inductors plus diodes and other things.

They are fantastic if you’re one of those people who has a tendency to collect a lot of components but forget what they are.

Here’s an amazon link to a typical one...

https://www.amazon.com/dp/B071Y5CHPK

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