Metal Detector -  This circuit detects metal and also magnets.  When a magnet is brought close to the 10mH choke, the output frequency changes.  __ 555-Timer

Metal Detector -  Making a metal detector was always my dream.   I was curious listening to those beeps at airport for which dad explained that they were metal detectors.  Which did not mean anything to me.  Last summer I had opportunity to find secrets behind this little stuff from my dad which turnout to be simple project one can make at home. __ Designed by Nina Gajjar

Metal Detector -  A single chip metal detector with a range of a few inches.  This is useful for decting nails or screws in walls and floors, or for locating buried mains cable.   __ Designed by Andy Collison

Metal Detector 1 MHz -  Schematic only __ Designed by va3iul

Metal Detector 300 kHz PNP -  Schematic only __ Designed by va3iul

Metal Detector 3xBJT Homemade -  Schematic only __ Designed by va3iul

Metal Detector 4001-ZL2PD -  Schematic only __ Designed by va3iul

Metal Detector 455 kHz -  Schematic only __ Designed by va3iul

Metal Detector 5.5 MHz -  Schematic only __ Designed by va3iul

Metal Detector 625 kHz -  Schematic only __ Designed by va3iul

Metal Detector 650 kHz -  Schematic only __ Designed by va3iul

Metal Detector a Pulse Induction Detector Pulse-1 -  Hundreds of this Detector have been built with Very favourable Feedback.  This is the Most Most Popular Project on my site.   __ Designed by G.L. Chemelec

Metal Detector based on the CS209 NoW Discontinued -  Especially Suited to find studs in Walls.  Note: this IC is discontinued and getting hard to obtain.   __ Designed by G.L. Chemelec

Metal Detector based on the TDA0161 -  A Simple design based on a TDA0161 IC that appears to give better results than the Discontinued CS209 and draws very little current from a 9 volt battery. __ Designed by G.L. Chemelec

Metal Detector Beat Balance -  Schematic only __ Designed by va3iul

Metal Detector Coils for my PI Detectors -  Due to the increasing number of Requests I have recieved.  I have now designed and built 2 new Coil Winding Jigs for my Radial Flat Coils.   __ Designed by G.L. Chemelec

Metal Detector Heathkit GD-1190 -  Schematic only __ Designed by va3iul

Metal Detector Heathkit GR-1290 -  Schematic only __ Designed by va3iul

Metal Detector Mk1 -  A fun metal detector to find coins at the beach __ Contact Collin Mitchell

Metal Detector Mk2 -  More sophisticated 5 transistor metal detector (BC547, BC557, BC338)  __ Contact Collin Mitchell

Metal Detector My Pulse-2 Induction Type Detector -  This is a Revised Version of the Pulse-1 above with Additional Controls for Possibly More Flexibility.  This Detector is Definately Not for the Beginner.   __ Designed by G.L. Chemelec

Metal Detector Pin Detector -  Schematic only __ Designed by va3iul

Metal Detector PLL 4046 Beachcomber -  Schematic only __ Designed by va3iul

Metal Detector Simple Circuit 3xBJT BFO -  Schematic only __ Designed by va3iul

Metal Detector Simple Circuit BFO -  Schematic only __ Designed by va3iul

Metal Detector Surfmaster Pi -  Schematic only __ Designed by va3iul

Metal Detector Toro -  Schematic only __ Designed by va3iul

Metal Detector uses Single IC -  12/18/97  EDN Design Ideas:  The circuit in Figure 1 protects a power bus from a load short within a guaranteed 2 µsec; a short could otherwise pull down the bus, affecting other loads.  The circuit also controls inrush current to bypass capacitors during hot-swap (hot insertion) , another situation in which bus voltage could otherwise experience a droop.  You can individually set the two current limits.  Power-on reset and logic controls allow complete µP interfacing. Design by Rachel and Steve Hageman, Hewlett-Packard, Santa Rosa, CA

Metal Detector using Difference Resonator -  This circuit can detect metallic conductors in its vicinity up to a range of 25 to 30 millimetres.  __ Electronics Projects for You

Metal Detector-A Pulse Induction Detector. Pulse-1 -  Hundreds of this Detector have been built with Very favourable Feedback __ Designed by G.L. Chemelec

Metal Detector-JF1OZL -  Schematic only __ Designed by va3iul

Metal Detector-Pulse-2 Induction Type Detector -  This is a Revised Version of the Pulse-1 above with Additional.  Controls for More Flexibility.  This Project is Definately Not Recommended for the Beginner __ Designed by G.L. Chemelec

My Metal Detector Coil Jig -  Not a ProjectBut this is how I make the Flat Coils __ Designed by G.L. Chemelec

My SUPER SENSITIVE Pin Pointing Metal Detector -  This is a Very Sensitive Pin-Pointing Metal Detector and Quite Stable.  I have Never seen another pin-Pointer as Sensitive as this one.   __ Designed by G.L. Chemelec

Metal Sensors / Detectors / Monitors  #'s - H      I - M      N - Z