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Offline moonshadowTopic starter
Pull Tab


United Kingdom
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130.00 Gold
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Garrett ACE 250
« on: May 17, 2009, 07:02:46 am »
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I am wondering what principles coin pin pointers use. I can see them working as BFO and PI. It may also be possible with a three coil arrangement on a ferrite rod, using IB or phase angle. Any links would be gratefully received.


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Offline homefire
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United States
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« Reply #1 on: May 17, 2009, 08:13:38 am »
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I don't remember any BFO types.

Most older types used IB or TR.

PI seem to be the new wave!



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