FMF Minerals Gallery

To access to this FMF post with the image

But wait a minute I have forgotten something, yes the coil. We need this if our metal detector is going to work. The first picture shows the template and the specifications are based on a bit of trial and error. Generally most coils will work, but to tweak it for best performance I settled with the one shown in the photo. This design was printed on paper and stuck on cardboard and the design cut with a craft knife. (Author: Lumaes)