Coupled Coil Metal Detector

Posted on Apr 12, 2012

A Coil Coupled Operation Metal Detector made from readily obtainable components and using an ordinary medium receiver as a detector. The metal detector shown here may well represent a new genre. At any rate, after some exposure, it is regarded as such by those who have seen it. It is based on a standard transformer coupled oscillator (TCO) - hence the name Coil Coupled Operation (CCO) Metal Detector.

Coupled Coil Metal Detector
Click here to download the full size of the above Circuit.

Although requiring a BFO (in this case provided by a Medium Wave radio), it differs from a typical BFO detector in that its performance far outstrips that of BFO. Also, unlike BFO, it is dependent on the balance of two coils to boost sensitivity. It also

Leave Comment

characters left:

New Circuits



Popular Circuits

frequency counter
Moisture Detector
12vdc 220vac inverter using cmos cd4047
Automatic LED Emergency Light Circuit
Series Inductor Filter
ISL43485 3.3V Half Duplex 30Mbps RS-485/RS-422 Transceiver
Apply a Pulse to a Speaker Using a Capacitor
Tube Tune-A-Lite ID37856
Circuit Power audio Amplifier with TDA2030 2.1 Chanell 3 x 18 Watts Subwoofer Complete With PCB suggestion and power supply
Adaptive zero voltage switching electronic ballasts
15W Valve Modulator Amplifier circuit