BFO metal detector from Electric Fly swatter
1 میلیون بار بازدید -
11 سال پیش
-
I modified an electric fly
I modified an electric fly swatter to BFO metal detector. Schematic from http://www.easytreasure.co.uk/bfo.htm
Search coil = 19cm diameter 15 turns.
Reference coil (Glue Stick + Copper pipe) = 2cm diameter 125 turns.
Search coil = 19cm diameter 15 turns.
Reference coil (Glue Stick + Copper pipe) = 2cm diameter 125 turns.
11 سال پیش
در تاریخ 1392/06/25 منتشر شده
است.
1,042,751
بـار بازدید شده