When I posted my findings on the C-Scope 5MX I built I was not joking a bit . What happened is beyond me but by using the CS 2MX coil on the detector I built I got the results as I wrote . So now you can see why I need to find the specifics of this coil or find me a used one somewhere . I still maintain that the coil is more important than the detector per-se . If I get the right info I will post the whole thing on this web . For the time being there is no use putting the schematic here because there is no coil to it yet . Kees