Quote:
Originally Posted by Esteban
I check my old PCB and found an only error regarding 1 nF cap, really is 10 nF. In other words, frequency is 100 Hz or near 100 Hz in pin 3 of the 7555 (or NE555).
Respect Ivconic's implementation, no necessary all the switches and caps. Only a 10 K pot. and switches for batteries. This pot. acts as sensibility control as a threshold adjustment. No need more.
My alterations are:
1. 3 telescopic antennas. Plates collects more interference and shows capacitance. Laterals antennas to 0 V. Laterals open 40-45 cm and central 60-65 cm.
2. Variable 2M2 preset replaced for fix resistor of same value.
3. Eliminated 100 K resistor in serie with 2M2 preset replaced, now fix.
4. Eliminated both switches S1 and S2, wich select for search electricity in walls and water flows.
5. The point 4 mean that only 10 nF is connected between pins 2-6 to negative.
6. Pin 9 of the 4066 no connected.
7. Eliminated visual section and replaced by trafo.
8. 22 K variable resistor (volume) replaced for fix 22 K.
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Hi,
ALL BS. The article doesn't say anything of mods required to find water flows!
PURE BS. AS ALWAYS.
The THING doesn't work and end of the story dear Esteban.
Kind regards,
Max