Complete instructions for this episode of Weekend Projects can be found at [ Ссылка ]
Detect the tiniest movements of electrical charge nearby without touching the source. This handy handheld tool will light up a LED when a nearby wire is live with electricity. It achieves this by multiplying the gain of three transistors, creating an astounding 8,000,000 increase in charge!
![](https://i.ytimg.com/vi/tTxIR_jAEL4/maxresdefault.jpg)