Continuity tester - video

Continuity tester. By Leo's Bag of Tricks. 12:54 video:

https://www.youtube.com/watch?v=N2M-p-OGvPg


Previously:

https://www.homemadetools.net/forum/...149#post161075
https://www.homemadetools.net/forum/...811#post133354
https://www.homemadetools.net/forum/...903#post140545
https://www.homemadetools.net/forum/...720#post159600

As a physicist /mechanical engineer I never had time to play with circuit designs and am now thinking about expanding my learning. This was very interesting - really nice job.

I made an audio continuity tester using a window burgular alarm. Simply replace the reed switch with your probes and you have a tester.