Schematic Links One
So we're not the first ones to think of cataloging metal detector schematics on the web.
While researching metal detector schematics we came across other sites with links to them, so we'll start posting those as well.
For the first site of metal detector schematic links we'll head on over to VlfDetectors.
You won't find many detailed explanations of the schematics, and some are miserable scans in PDF format, but there are plenty to look at :-)
(warning, geocities site, watch for popup)