Basic Digital Ring Tester project
After I designed
the "Blue2" microcontroller-based digital ring tester
wondered how hard it might be to make a similar tester using ordinary
components. This was the design I came up with.
Click to watch the video demo on YouTube.
I don't plan to make and sell them, but I'm making all the design information
available for anyone who's interested. Everything is in one zip file.
to download it
. Have fun!
5th June '21