Post proof of working LRL

[Esteban]

Originally Posted by Fred

That could be one more point to use metallic enclosure, so as long as position of enclosure is fixed batteries boards wires etc don´t matter any more, as they are inside .
About performances,any difference between wodd and metal?
Regards,
Fred.

Metal is better for to reject interference. Also my idea is to put batteries in metal sub-box, and cables of batteries shielded, seems extrange, but maybe interference also filtrates in long batteries lines. So, there are many considerations.

I built the EPE "Magnetic field detector" by Andy Flind. I change the common transformer by spiral coil and both pass electrolitic by ceramic for to stop the very low frequencies. Remember, the capacitors in inputs are the first filter. I put this in metal box, very different if you build in wood box. Metalic box is very better in this circuit.

Don't know why, you obtain strong signals in inland in X type of terrain, not causes by treasures, maybe teluric currents? Is rare, but occurs.

With some modifications this is a medium range MD. If you put many turns, for example, this is a spiral of 15 cm diameter, tends to catch since rifle cartridge. But if you build in toroid core 1.7 or 2 ohms and appropiate aluminium rectangular antenna, this filtrates much the bronze and comes silver, for example.