[sdiy] sniffing

[Grant Richter]

If this appeals to you, you would probably enjoy this book:

"Listen to Radio Energy, Light and Sound"

by Calvin R. Graf
Howard W. Sams publisher 1978
ISBN 0-672-21525-X

Describes a simple audio amplifier with simple detector heads for
microwaves, earth fields, lots of stuff, including a shorted input
transducer for Barkhausen noise (discontinuous movements of mobile magnetic
boundaries between magnetic domains).

A great amateur scientist book, shows you how to use stuff you already know
in ways you might not have thought of.

Amazon.com shows it out of print:

http://www.amazon.com/exec/obidos/tg/detail/-/067221525X/qid=1050427058/sr=1
-4/ref=sr_1_4/002-1699855-4018446?v=glance&s=books

but worth looking for.