coil for magnum metal locator

[Marcello]

Do you excuse, has someone realized the coil for the magnum metal locator?
Is the number of turn of the coil of transmission correct as it is on the scheme?
To me with 60 turn of 32 swg didn't work, then have done with 175 turn one of it and works very better!
does someone know me to help?

[massimo]

I try Magnum circuit same years ago and it works nice.
I made the coil as on the projet now i dont remember the number of the turn bat whit the number on the projet it work.

regards Massimo