Hi Bob, On Wed, May 15, 2013 at 10:27 AM, Bob Blick wrote: > When the power company wants to follow the path of a buried cable, they > attach a gadget to one end and walk along the ground with another > gadget. Looks real easy when you have that $7000 pair of gadgets. > > Any idea what inexpensive thing I could modify to get a similar effect? > I don't need to do it on a live wire, and the maximum depth underground > is one meter or less. I used to trace my satellite coax cables, telephone cables and ethernet cable installation at my office with a Tone tester. It wasn't that expensiv= e as you mention. I have 2 such devices, one of them has a better sensitivity= .. Nevertheless, it looks somewhat similar: https://www.theelectricaltoolstore.com/tenma-tone-generator-probe-set-cable= -locator-p-204.html?zenid=3Dvnt2t68vdjtffs7u3r9abdvgq4 Regards, Manu --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .