-->
Gold detector circuit

Gold detector circuit

Gold detector circuit

Rangkaian Detektor Emas. Here the very simple and easy build gold detector circuit. The circuit capable to sense gold or metal or coins from a distance of about 20cm, depending on the size of the object to detect.
The circuit oscillates at about 140kHz and a harmonic of this frequency is detected by an AM radio. You can simply tune the radio receiver until a squeal is detected.
When the search coil is placed near a metal object, the frequency of the circuit will change and this will be heard from the speaker of AM radio.

Below image is the construction of the circuit, you will see that the radio is placed on the hand stick of the complete detector.
Skema Rangkaian Gold Detector


Lay out Gold Detector-2


PARTS LIST
:

1 - 220R (red-red-brown-gold)
1 - 47k (yellow-purple-orange-gold)
2 - 1n greencaps (102)
1 - 4n7 greencap (472)
1 - 10n greencap (103)
1 - 47u electrolytic
1 - BC 547 transistor
1 - slide switch
1 - 9v battery snap
1 - 9v battery
6.5m winding wire (gauge not critical)
Blogger
Disqus
Pilih Sistem Komentar

3 comments

This comment has been removed by the author.
This comment has been removed by the author.

The world’s first company specialized in detecting gold, raw gold, minerals, groundwater and security systems ECT provides these products with the cheapest prices, the fastest shipping methods and the easiest way to buy a product from the source directly to your door wherever you are in the world. click for more info

Balas

Advertiser