Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.

Simple gadget for detecting hidden ferrous metal in recycled lumber relies on strong rare earth magnets.
CANADIAN HOME WORKSHOP May 2002 (v.25#7) pg. 14

Experimenting with Hall-effect devices, the principal solid-state sensors of magnetic fields.
MODERN ELECTRONICS [2] Sep 1987 (v.4#9) pg. 72

Tip: How to use a magnet to find hidden nails in old lumber.
NATIONAL CARVERS REVIEW Fall 1978 (v.9#3) pg. 32

Metal locator will determine the exact location of ferrous or non-ferrous metals at a distance up to 2". Useful for locating hidden nails in walls, boats, etc. Est. cost: $10.
POPULAR ELECTRONICS [1] Sep 1969 (v.31#3) pg. 69

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