I have a White's TDI SL with the original 12 dual field coil, the Super Pulse and the small 6" dual field coil. I'm hunting for a 12" mono coil. I would like to know exactly what pure mono coils will work with this machine. I mostly hunt around old schools where the coal waste has been discarded over the school grounds for decades. These areas have all but completely shutdown every VLF detector I've ever had. A pure mono coil will greatly help with eliminating some of the so call "hot rocks" in these areas. Now just to share, all the heavy gold rings have been found using the TDI. A pure mono coil should be lighter than the 12" dual field coil I have.
Thanks in advance.
Mark
Thanks in advance.
Mark
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