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#526
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I think it's a good result similar to the one I got with 5 silver coins buried at 25 cm.
Probably gold is detected to greater distance. |
#527
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thank you sir Francoitaly for your help and cooperation just a question please what is the value of both capacity |
#528
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This version for me doesn't work, however you can try 1 nF for both and increase until you have 2-5Volt (DC output).
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#529
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I have received requests to repost scheme of my lrl. It's the 8Mhz quartz version. Power-display(1 led) is the stabilized supply with led alert of low battery and 1 led for display. Display(3 led) is the scheme for 3 display leds but it is always necessary stabilized power supply.
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#530
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thank you very much Franco
I will build this device and keep you informed of the results |
#531
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#532
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Sorry but I don't well undestand what you mean, in the past I tried other solutions for my lrl but this is the better, there is a lot of amplification and some change may cause autooscillation . I don't like FET transistor and the base of the first transistor for me is the better point for the antenna, I suppose that the base-emitter junction is important for phenomenon detection.
Regards |
#533
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I mean the plan that I put.who i connect the antenna and the crystal?
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#534
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I don't know, this is not my design, that comes from a modified rf sniffer, if you change transistors and schematic I cannot say nothing else.
Regards |
#535
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I know that it is not the plan you simply request an aid for another ... you know about this
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#536
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Design from Morgan or Who ??????
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#537
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#538
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Taxma, open a new thread, don't destroy the thread of Franco!!!!
__________________
Geo |
#539
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Hi Geo,
How are you? I have already said privately taxma, his lrl is broadly similar to my LRL, but, as you say, it is better to test on the field my LRL and it's for this reason I posted my LRL on the forum. I already had privately confirmed the good functioning of my LRL and invite again all those who have had success to reveal it publicly on the forum. Regards |
#540
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Regards Saromines_R
__________________
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#541
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with bc 547c work fine
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#542
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#543
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#544
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#545
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The resonant circuit connected to the antenna is in the range 100-150Mhz and sources of radio frequency which falls in this range (also with sub harmonics) affect the LRL especially if they are very close and in the house there are many sources of this kind. We can use these sources to test our LRL but my favorite test it's to touch the antenna and check the signal decreases, to do this set the threshold so that the LED is turned on weakly then by touching the antenna the led should go off.
Regards |
#546
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I did this when handling the antenna, the voltage drops .. Detects static Yesterday rubbed the comb in the hair of 4 meters and started beating
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#547
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how crystal is working better franko ?we can be put and largest;
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#548
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If you mean the size of quartz, small size is equal to normal size. The frequency is no critic, I have used 4 - 6 - 8 and 10Mhz with no difference.
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#549
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Frank 4-6 volts must have; measuring the exit to ground; so why zero .... 4-6 volts only shows measuring the exit and entrance front
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#550
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I don't understand what you mean with "zero", the DC output of sensor stage, that's the rectified AC signal, it must be in the range 2-6V.
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