Have you seen this Cool Electronics Testing Tool?

Identify all the loose parts in your parts bin.
Is that transistor a PNP or NPN?
What's the volatge drop and capacitance of that LED?
This tester will show you with colored graphics
Multi-function Tester TC-1
This is where I bought mine; I'm sure they're available on ebay etc.
www.banggood.c...
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