All the experiments and improvements are welcome, I have made my lrl public, with all the details for the realization, not only for the ideas of open source, but also to be able to improve it. I believe I have demonstrated that the phenomenon exists, as those who have realized it can testify. Unfortunately, most of the time I am away from my lab, as well as the test field. The phenomenon appears in a vast range of frequencies, from long waves to FM up to infrared, so it is possible to construct lrls that are based on different frequencies. A big thank you is for Esteban, without whom even today we would know very little about the phenomenon and perhaps this forum would no longer exist.
Dear Franco, my device is very stable, it senses when you touch the antenna as it senses 4g internet device from 1,5 meter , I use a sine wave 12 MHz.
Does not respond with the computer !!
Is this good or does it need more sensitivity?
With regard to the two resistors 22 k for variable resistance 22 k did not work with me becomes the device operates non-stop
Dear Franco, my device is very stable, it senses when you touch the antenna as it senses 4g internet device from 1,5 meter , I use a sine wave 12 MHz.
Does not respond with the computer !!
Is this good or does it need more sensitivity?
With regard to the two resistors 22 k for variable resistance 22 k did not work with me becomes the device operates non-stop
The optimal amplification is that immediately below the appearance of the compass effect. It is a common phenomenon (I suppose) of all the lrls, moving from north to south or vice versa there is a signal of constant amplitude, while in the case of a metal the signal increases approaching while disappearing on the vertical of the target. The maximum sensitivity is in the north / south direction, average in east / west and west / east direction and minimum in the south / north direction.
Does the 12Khz frequency refer to the quartz oscillator? The lrl works with frequencies between 2.5 and 10Mhz, but certainly also with higher frequencies. The sensor stage in practice amplifies the higher frequencies more, in fact C13 / C14 make the stadium an amplified high pass filter, their value must be chosen based on the frequency and the desired gain. In other words with the values chosen for a frequency of 8Mhz if a quartz of 12Mhz is used the amplification is greater. For variable resistance 22 k you mean the adjustment of the threshold?
Dear Franco, I have encountered a problem with a variable resistance 22k, the problem has been removed, the video I put is not for the original device
I did not notice that the oscillator is not connected to the device
Now when you measure the antenna frequency is 8 MHz
I changed the capacitor 13 and 14 to 100 pico, and resistors to 3k
The device does not respond by touching the hand and responds to the TV at a distance of one meter
Possible help to increase sensitivity
I did not watch well, coil worth 60 nano Henry
It means a frequency of 120 MHz
How the oscillator responds with this
****, that's why my device is weak
Good morning, all friends
The coil of one roll used was very sensitive
I will try half a lap maybe it will be better
1 pico capacitor in parallel
Do you mean L1 = 1 turn and C10 = 1pF?
Remember that in parallel to C10 there is the parasitic capacitance of the base / emitter junction of TR2 which is about 6pF.
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