This is an old revision of the document!
http://scrying.org/doku.php?id=workshop:pdplug pd workshop resources
http://1010.co.uk/materials.html diy fet transistor also http://sparkbangbuzz.com/cds-fet/cds-fet.htm
http://www.assap.org/newsite/articles/Magnetic%20ghosts.html EIF
http://people.consolidated.net/fsmyth/pages/555apps.html#555apps3 555