Re: Foxy's Latest Project.
Before setting about building the circuit it was necessary to construct the search coil. I had already made a coil winding apparatus for construction of the mark 1 detector, so with a little modification was able to use it for the MK2 coil as seen in the photo....
This coil is very different to the ones I have wound previously. It is larger (200mm dia) and must be covered with aluminium foil. As you can see, the coil has now been wound and is being covered with an insulating material before the application of the foil. I will figure out how this can be tidied up and attached to a supporting ring fitted to the end of the shaft later.
There are some specialised items required for this model, and rather than forage around in my extensive collection of recycled components, I decided to remove any doubt as to their ability by purchasing some new bits......They arrived yesterday.....
These is not a complete list, and there are still some capacitors and assorted hardware required that I might already have in stock, but if I have, the whole lot has only come to less than twenty quid...