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Just completed my PI longboard and 10" searchcoil.
Powered up. Disapppointed with the volume output in my headphones (Killer Bees), barely any volume after adjusting the boards pot. Figured speaker 150 ohm rating may be the problem. Switched over to a 32 ohm headset, much better.
After figuring out the adjustments and playing with a gold man's wedding band and some coins the detector has potential. Air test coins to about 6", wedding band to about 6-7".
It will also find very thin women's white and yellow gold rings changing the adjustments to maximize small gold detection, air test to about 4".
One thing I noticed it will still detect in air pull tabs, bottle caps, nails and such . It will not detect small pieces of aluminum foil or hair pins.
Still more experimenting needed and have two more completed boards to test out.
The search coil was just 22g magnet wire, 19-20 turns, 10" connected to a USB cable. Winder built using my cheap leftover scrap parts I had around.
Powered up. Disapppointed with the volume output in my headphones (Killer Bees), barely any volume after adjusting the boards pot. Figured speaker 150 ohm rating may be the problem. Switched over to a 32 ohm headset, much better.
After figuring out the adjustments and playing with a gold man's wedding band and some coins the detector has potential. Air test coins to about 6", wedding band to about 6-7".
It will also find very thin women's white and yellow gold rings changing the adjustments to maximize small gold detection, air test to about 4".
One thing I noticed it will still detect in air pull tabs, bottle caps, nails and such . It will not detect small pieces of aluminum foil or hair pins.
Still more experimenting needed and have two more completed boards to test out.
The search coil was just 22g magnet wire, 19-20 turns, 10" connected to a USB cable. Winder built using my cheap leftover scrap parts I had around.
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