Two-box Deep Seeking Metal Detectorby Charles D. Rakes |
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This project is from Solid State Electronics Projects by Charles Rakes. The transmitter uses a UJT for the oscillator which can be a little hard to find (Mouser and Circuit Specialists have them). This type of oscillator is not particularly necessary and practically any good oscillator design should work. Rakes also had a later book titled Building Metal Locators which is now out-of-print. It contains many more metal detector circuits but, surprisingly, does not include the two-box design.
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Two-box Deep Seeking Metal Detector (PDF-394K) Two-box Deep Seeking Metal Detector (PDF-393K - Acrobat 2.1) |
Comments from people who have built this project:
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