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#1
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please write here your interpretations of PD schematic
my interpretation is that is made basically of 3 different circuits: 1. Heathkit GD348 MD with omega+round smaller coil, working as usual old IB VLF MD with unshielded coils and at same expected range of an IB VLF MD with that small coils 2. passive receiver circuit made around a couple of ferrite rods antenna (directive) and tuned in LF band (long waves) maybe around 60Khz, to receive some very strong LF signal like time radio station WWVB of NIST and the like 3. mixer and monostable circuit that mix output of the MD and passive receiver and then feed a 555 that controls buzzer for audible signal and led I don't see anything else interesting please provide your interpretation too, expecially Geo regards Max
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"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#2
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I suspect, the LRL rats do not want to discuss the technical aspects of it.
They either want to discuss the discussion, that LRL's are working. or to discuss the discussion about so called "theories", which is in my opinion a b$ theory. EMI noise and other noise sources are the best friends of LRL rats. Cheers, Aziz |
#3
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Hi Aziz,
the fact is that the schematic is quite simple so I do not understand what they mean for particular stuff we don't see in it or we miss somehow e.g. the purpose or meaning of such circuits but lets see what they write (if they will write something...) and take a look at their interpretation of schematic if different from ours regards Max
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"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#4
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But let them to talk correct explanations.
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Global capital is ruining your life? You have right to self-defence! |
#5
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I believe someone said that the coils are not absolutely necessary but an improvement, so we could drop all the GD348 and mixer circuit, and it should still "work". That would let us with a simple passive receiver, so this must be the heart of the circuit.
Apparently the idea when tuning it is to cancel any magnetic reaction, so we end up with a receiver that detect only RF levels variations... mmmh...No wonder it is somewhat erratic and depends on geography ... |
#6
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seems that they (LRL believers and claimers) don't wanna discuss about schematic of PD
I do not understand that, but is not a good sign about they have a better understanding of that schematic at the end of the day... ![]()
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"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#7
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if so it's not different from the "goldgun" AL718, that's indeed a simple passive receiver! but seems many people , even LRL addicted many times here denied the goldgun works as advertised... so I really don't understand what's so special in that schematic then or what we do not see or understand... will be nice to hear from the LRL entusiasts about that stuff... regards Max
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#8
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Do you really want to discuss the issue of PD;; How;;
I refuse to go into a debate, where you tolerate a member to cursing others ![]() ![]() Regards ![]()
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Geo |
#9
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sure, I wanna discuss schematic here, no jokes...
so Geo, what did you see interesting in it ? regards Max
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#10
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Quote:
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#11
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my pdk...only part ferrite
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#12
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I remember another kind of LRL where he uses tape recorder amplifier, and that's a vlf broadband receiver no dubt regards Max
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#13
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The EE or entusiast who can find the way to UPGRADE this circuit, have build one powerful Long Range Locator. |
#14
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omega coil ... I am still building ...
could anybody help me with the number of turns omega coil? |
#16
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can you confirm that ? regards Max
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#17
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The PD,also work,but is not AUTOMATIC,and is the hard way to build one LRL... |
#18
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Hello dear members, I am a newbie and ten years of trace metal detector and did not speak English but who am I annoying you and wasting your time, and I'm sorry the percussion alone, I could have a few years of the twenty-Si detector and metal detector machine to do it and if I find a Persian language and he would be willing, I'd love to work with him and happy sheep
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#19
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Regards. |
#20
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hi cangrejito i like a see this book brasileiro- tortugueise in my bandeja de entrada, mail, bye bye
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#21
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I did a PD detectors can only detect the magnetic field of the metal is not reflected in the so-called remote detectors, LRL, PD, are deceptive tricks, we do not have to study, I was doing PI detectors, hope interested friends together to exchange
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#22
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[IMG]
![]() Perhaps this drawing can help in determining the coils value. Sorry for my English. |
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