How to make a concealed electrical wire detector? Super device DIY! AMAZING!

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Hello! How to make a hidden wiring detector with your own hands from scrap materials at home!

We will need:

- NPN transistor C945 (3 pcs.)
- LED 3V, 5 mm,
- resistor with nominal 1 kΩ,
- thin insulated copper wire (diameter 0.5 mm),
- connector for the crown,
- battery crown,
- soldering iron
- and so on.

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The tools that I personally use and are time-tested!
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d.official

Would work better with an iron core in the middle of the coils.... Maybe just cut a nail and wrap coil around that. Could then use some apoxy and coat the coils and core to hold it and protect it. Thanks for video. I'm gonna make one.

mrchaos

Very good circuit but it is not working to trace consealed wire in side the wall. It is working if I use it on the wire outside the wall. Secondly can I use BC 547 transistor instead of C945
Anil Kumar Goel

anilkumargoel