hi to all
am ahmad from syria and am new in metal detectors....
I get old secand hand plus star 2 and when i open it i find a crystal oslicator missing from the pcb
i need to know whats witch crystal cood i use i try some of them and one of them work after i make a search coil with 25cm dimeter and 3mm wire with 25 turns
but i get 20cm depth at big metal its very poor
pleas help me to know what crystal i use and how many turns for the coil
thank you for all ...
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