My latest video about how to repair a (simple) circuit and some explaining about how it should work. The subject is build around a simple 556 and it should chase mice away. I doubt that....
More info about the schematic, how it works and pictures on my website:
http://www.pa4tim.nl/?p=6003I hope you like it.
Fred ( pa4tim )
https://youtu.be/PNuYlG32KV0