HAMMY'S how they are made from Tower of London
I AM STARTING TO PUT TOGETHER A NEW PULSE INDUCTION DETECTOR MADE FROM PARTS SUPPLIED FROM A KIT
£80 FROM THE STATES FOR ALL THE ELECTRONICS INCLUDING A BASIC COIL
I HAVE MADE THE STEM FROM 21.5MM OVERFLOW TUBE AND AN ARM CUP FROM GUTTERING,SPONGE HANDLE FROM A BMX BIKE,
12v 1.8 Ah LiPo FROM EBAY
2 x RCA LEADS FOR THE CABLE FROM COIL TO CONTROL BOX
Started on the New PI detector, getting the electronics built up when the kit comes
Finished the Chemelec PI Pulse 1 detector works very well, tin can at 3-4ft coins down to 18" very responsive, More of a beach detector but good for deep searching in pasture.
UPDATE !!!!!! Just completed the Pulse 2 with added controls, Pulse Width,Dead Time, On Time, Also the 100/1000 switch for deep searching small items.
All welcome contact at firstname.lastname@example.org