Dowsing Rod for 2012

[Geo]

Hi.
I will show a new dowsing rod.
This uses a simple signal generator with variable frequency from 3.5 to 70 Hz.
With this you can locate caves, gold, copper etc.
The schematic is very simple (only 2 IC's and one transistor) and you can construct it on the pcb that i will attach here or at a general purpose pcb.
continued...