Build the Frisker - BFO Metal Detector IYou are not allowed to view links.
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Build the Frisker - Part I
by William Sheets & Rudolf F. Graf
This project is a BFO packaged as a handheld device. The reference oscillator is a crystal, and the search oscillator is tuned with a varactor using a potentiometer. It appeared in the November 2002 issue of Poptronics, which is now the Poptronix website.
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« Last Edit: December 09, 2009, 12:36:23 am by Christian »
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