Comments on: Metal Detector Circuit http://www.circuitstoday.com/metal-detector-circuit An Authentic Resource on Electronics Wed, 08 Feb 2012 02:09:28 +0000 hourly 1 http://wordpress.org/?v= By: Simple Metal Detector Circuit Using Radio | Welcome to www.eMechatronix.com… The True Dedication… http://www.circuitstoday.com/metal-detector-circuit#comment-73299 Simple Metal Detector Circuit Using Radio | Welcome to www.eMechatronix.com… The True Dedication… Tue, 06 Dec 2011 08:10:47 +0000 http://www.circuitstoday.com/?p=98#comment-73299 [...] Metal Detector Circuit with Diagram and Schematic [...] [...] Metal Detector Circuit with Diagram and Schematic [...]

]]> By: ashley http://www.circuitstoday.com/metal-detector-circuit#comment-69966 ashley Sun, 27 Nov 2011 16:55:57 +0000 http://www.circuitstoday.com/?p=98#comment-69966 Has anybody tried this circuit? Can it detect gold? Has anybody tried this circuit?

Can it detect gold?

]]> By: seetharaman http://www.circuitstoday.com/metal-detector-circuit#comment-65352 seetharaman Mon, 07 Nov 2011 18:22:55 +0000 http://www.circuitstoday.com/?p=98#comment-65352 Tune medium wave pocket radio till you get the frying noise stops and you get the radio silenced. Tune medium wave pocket radio till you get the frying noise stops and you get the radio silenced.

]]> By: blamita http://www.circuitstoday.com/metal-detector-circuit#comment-65332 blamita Mon, 07 Nov 2011 05:44:59 +0000 http://www.circuitstoday.com/?p=98#comment-65332 what band have i to tune the pocket radio to. what band have i to tune the pocket radio to.

]]> By: seetharaman http://www.circuitstoday.com/metal-detector-circuit#comment-65136 seetharaman Fri, 04 Nov 2011 17:10:26 +0000 http://www.circuitstoday.com/?p=98#comment-65136 Hi Aitya you please refer to comment dated 15 Aug on the use of radio. you have to use 10PF only for the circuit to function properly. Hi Aitya you please refer to comment dated 15 Aug on the use of radio. you have to use 10PF only for the circuit to function properly.

]]> By: aditya http://www.circuitstoday.com/metal-detector-circuit#comment-65013 aditya Thu, 03 Nov 2011 09:40:36 +0000 http://www.circuitstoday.com/?p=98#comment-65013 Hey i am unable to find 10pF capacitor.Can i use 100pf instead of it.And is using a fm mobile phone sufficient or a pocket radio is sufficient.Can u tell the approximate frequency. Hey i am unable to find 10pF capacitor.Can i use 100pf instead of it.And is using a fm mobile phone sufficient or a pocket radio is sufficient.Can u tell the approximate frequency.

]]> By: seetharaman http://www.circuitstoday.com/metal-detector-circuit#comment-64646 seetharaman Thu, 27 Oct 2011 19:49:25 +0000 http://www.circuitstoday.com/?p=98#comment-64646 Hi Shinoj 38SWG is 38 standard wire gauge is the size of the cable. 38 swg is 0.152mm or 0,006inch diameter wire. equivalent to 34AWG. you have to use this dia super enamelled copper wire for winding the coil. Hi Shinoj 38SWG is 38 standard wire gauge is the size of the cable. 38 swg is 0.152mm or 0,006inch diameter wire. equivalent to 34AWG. you have to use this dia super enamelled copper wire for winding the coil.

]]> By: SHINOJ http://www.circuitstoday.com/metal-detector-circuit#comment-64635 SHINOJ Thu, 27 Oct 2011 14:55:27 +0000 http://www.circuitstoday.com/?p=98#comment-64635 What is mean by 38SWG in the L1 Coil What is mean by 38SWG in the L1 Coil

]]> By: samapth http://www.circuitstoday.com/metal-detector-circuit#comment-64611 samapth Thu, 27 Oct 2011 04:20:30 +0000 http://www.circuitstoday.com/?p=98#comment-64611 metal derector metal derector

]]> By: seetharaman http://www.circuitstoday.com/metal-detector-circuit#comment-61877 seetharaman Mon, 15 Aug 2011 16:00:18 +0000 http://www.circuitstoday.com/?p=98#comment-61877 Hi Revathy use a MW pocket receiver close to this circuit use an ear phone to listen. now switch on both and tune the pocket radio till you get a silent zone that is empty carrier without any modulation (information). normally without any station tuned in you will get the frying noise with a blank carrier it will become quite. When ever a metal is approached by the detector the oscillator frequency will shift hence the silence will change to frying noise indicating the proximity of metal. Hi thompson it should be between few inches to few feet (5feet or so) it depends on the skill of the operator. Hi Revathy use a MW pocket receiver close to this circuit use an ear phone to listen. now switch on both and tune the pocket radio till you get a silent zone that is empty carrier without any modulation (information). normally without any station tuned in you will get the frying noise with a blank carrier it will become quite. When ever a metal is approached by the detector the oscillator frequency will shift hence the silence will change to frying noise indicating the proximity of metal.
Hi thompson it should be between few inches to few feet (5feet or so) it depends on the skill of the operator.

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