mae@weitek.UUCP (Mike Ekberg) (09/10/85)
I am looking for a simple, cheap and easy to build metal detector. I would like a circuit diagram or a pointer to a book or article. Budget is $10-20. I will use the device to detect metal(eg. nails,screws) in wood to a depth of several inches. The device should be portable and battery powered. Thanks in advance. mike ...cae780!weitek!mae
dr@ski.UUCP (David Robins) (09/18/85)
> I am looking for a simple, cheap and easy to build metal detector. I would > like a circuit diagram or a pointer to a book or article. Budget is $10-20. You should look around in the tool catalogs that the discount tool houses send out, as well as Sears, (possibly.) I bought a small hand-held metal detector at a local hardware store for about $10 or $15. It does just what you are looking for. I use it for finding pipes in walls, and nails. I've seen a similar unit in the "Dick Smith Electronics" catalog, as well as elsewhere. P.S.: If you want to use it for finding wall nails, as a stud locator, I rather highly recommend the stud finder in the Sears tool catalog. They sell it for $25, but some harfware stores have the same unit for $20, from the original manufacturer. It is a dielectric sensing unit, and it finds the wood or the stud, rather than the nail, which may be off-center. Works through plaster board, regular plaster, and paneling. -- ==================================================================== David Robins, M.D. Smith-Kettlewell Institute of Visual Sciences 2232 Webster St; San Francisco CA 94115 415/561-1705 {ihnp4,qantel,dual}!ptsfa!ski!dr The opinions expressed herein do not reflect the opinion of the Institute!