Montana VLF Coil desing request.

[aggelosz]

I found a metal detector called Montana i got all circuits. But i dont have the desing for coils if anyone got answer me...

[Silver Dollar]

Here's the info on this detector but no coil data. Maybe we can figure it from the
caps used on TX and rX?

[Silver Dollar]

I'd guess 8 - 10 khz by the 470/47n caps in the TX. This was designed by the same guy
who did the Magnum but he's not around anymore.

[Silver Dollar]

Here's some more info. It looks like 8.4 khz or 13 khz. So you can probably use something like a Tesoro 5 pin coil.

http://www.geotech1.com/forums/showt...hlight=montana