Metal Detector

[BoyceNoun]

I noticed that some of these links here were dead. Here is one link with a description of each of the most popular detector types, with schematics.

http://www.hobby-hour.com/electronic..._detectors.php


Attachment 5000

Attachment 5001

Attachment 5002

Attachment 5000
And one more link http://www3.telus.net/chemelec/Projects/Projects.htm

Can this circuit diagram go with any kind of metal detector?