DIY Beat frequency Oscillator Metal Detector

Posted on 10.09.12 in the category Electronics

Searching for treasure with a metal detector can be an expensive hobby, but with this homemade DIY version from Essex Metal Detectors it doesn’t have to be!

It is based around a simple BFO (Beat Frequency Oscillator) design that is pretty much standard in most entry level detectors available on the market. It has a small in inexpensive parts list and is all powered by a 9v battery.

DIY Beat Frequency Oscillator Metal Detector

They even take you through the process of building your own search coils for the device, PCB layouts, schematics and a detailed build log are all available from the site.

One Response to “DIY Beat frequency Oscillator Metal Detector”

  1. Is a match between component placement and the schematic available?

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