I've used the search function here and cant find anything. No luck with google either.
I need something simple and compact.
I've seen some comercially available that test for 48v and generate tone.
Seems like schematics should be out there but I cant find any.
I need something simple and compact.
I've seen some comercially available that test for 48v and generate tone.
Seems like schematics should be out there but I cant find any.