There are 37 circuit schematics available in this category. Click here for all circuit diagrams. The Last circuit was added on Tuesday, July 11, 2017.Please note some adblockers will suppress the schematics as well as the advertisement so please disable if the schematic list is empty.

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CircuitCategoryDate AddedOK?Votes 
Beat Balance Metal DetectorMetal Status9 vote up vote down
Coil Coupled Operation Metal DetectorMetalNov 10, 2009Status-1 vote up vote down
GoldPic 3 Pulse Induction Metal Detector (has electronic kit available)MetalMay 30, 2007Status0 vote up vote down
Two-component metal detector using a 4093Metal Status1 vote up vote down
Simple DIY BFO metal detectorMetalJun 27, 2010Status4 vote up vote down
Pulse Induction Metal Detector part 1 (PDF)MetalJun 27, 2010Status0 vote up vote down
Pulse Induction Metal Detector part 2 (PDF)MetalJun 27, 2010Status-1 vote up vote down
Heathkit Groundtrack GR-1290 VLF metal detector circuit diagram and detector coil construction notesMetalJun 27, 2010Status2 vote up vote down
White's Surfmaster PI (pulse induction) metal detector schematic diagramMetalJun 27, 2010Status-1 vote up vote down
Simple metal detector based on a PIC12F683 microcontrollerMetalJun 27, 2010Status-1 vote up vote down
Single chip metal detecor with a range of a few inches based on CS209AMetal Status0 vote up vote down
Metal Detector 1 MHzMetalSep 07, 2016Status1 vote up vote down
Metal Detector Simple BFOMetalSep 07, 2016Status0 vote up vote down
Metal Detector Heathkit GD-1190MetalSep 14, 2016Status-2 vote up vote down
Metal Detector Heathkit GR-1290MetalSep 14, 2016Status-1 vote up vote down
161 kHz Metal DetectorMetalSep 28, 2016Status-3 vote up vote down
200 kHz Metal DetectorMetalSep 28, 2016Status1 vote up vote down
Metal Detector 650 kHzMetalOct 17, 2016Status0 vote up vote down
Metal Detector 1 MHz 3xBJTMetalOct 17, 2016Status0 vote up vote down
Metal Detector 3xBJT HomemadeMetalOct 17, 2016Status1 vote up vote down
Metal Detector 5.5 MHzMetalOct 17, 2016Status-1 vote up vote down
Metal Detector 111 kHzMetalOct 17, 2016Status2 vote up vote down
Metal Detector 130 kHzMetalOct 17, 2016Status0 vote up vote down
Metal Detector 140 kHzMetalOct 17, 2016Status-2 vote up vote down
Metal Detector 300 kHzMetalOct 17, 2016Status1 vote up vote down
Metal Detector 300 kHz PLLMetalOct 17, 2016Status-1 vote up vote down
Metal Detector 300 kHz PNPMetalOct 17, 2016Status2 vote up vote down
Metal Detector 455 kHzMetalOct 17, 2016Status0 vote up vote down
Metal Detector 625 kHzMetalOct 17, 2016Status0 vote up vote down
Metal Detector 4001 - ZL2PDMetalOct 17, 2016Status2 vote up vote down
Metal Detector Beat BalanceMetalOct 17, 2016Status0 vote up vote down
Metal Detector - JF1OZLMetalOct 17, 2016Status0 vote up vote down
Metal Detector Pin DetectorMetalOct 17, 2016Status0 vote up vote down
Metal Detector PLL 4046 BeachcomberMetalOct 17, 2016Status2 vote up vote down
Metal Detector Simple 3xBJT BFOMetalOct 17, 2016Status1 vote up vote down
Metal Detector Surfmaster PiMetalOct 17, 2016Status2 vote up vote down
Metal Detector ToroMetalOct 17, 2016Status-2 vote up vote down