Came up with this one today:
Had to find a box buried by the drywallers in a wood framed structure, without causing major damage... Used a continuity tester and a coathanger... Just hook one end of your cont. tester to a known ground and the other end to the coathanger ( scrape the varnish off the coathanger first!). Using the coathanger as a " probe" in the wall , when you touch the side of the metal box, your cont. tester will let you know.. This really only works if its a metal box and wood frame construction, and if you are able to tell by "touch" if you are touching a metal box or some other grounded metal in the wall...
A.D
A.D
