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  #226  
Old 12-08-2023, 09:35 PM
abdou2014 abdou2014 is offline
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help me to it work for me too
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  #227  
Old 12-09-2023, 08:01 AM
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Sorry but so long distance!!!
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  #228  
Old 12-09-2023, 09:08 AM
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By email
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  #229  
Old 12-09-2023, 11:58 AM
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  #230  
Old 12-11-2023, 12:40 PM
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Where is our brave Greek ?
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  #231  
Old 12-13-2023, 08:52 PM
Dubulumach Dubulumach is offline
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  #232  
Old 12-14-2023, 11:46 AM
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  #233  
Old 12-17-2023, 07:24 AM
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AC coupling is not good at IR detection. We don't need modulation.
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  #234  
Old 12-17-2023, 07:27 AM
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Quote:
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At left side everything about 324 is wrong...

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  #235  
Old 12-24-2023, 08:56 AM
Dubulumach Dubulumach is offline
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  #236  
Old 12-24-2023, 03:56 PM
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Hi Dragan.
Really i don't know if a good magnetic detector is good at our days for T.H.
I believe No...
The big problem is the noise. The background noise is bigger than the signal of any buried object so no way (or very very dificult)to catch it.
We must looking for something different.
One way is to check the total noise!!!!!!
Do u understand?????

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  #237  
Old 12-25-2023, 03:40 PM
Dubulumach Dubulumach is offline
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This special configuration with multiple feedbacks improve SNR while still maintaing high gain enough for catch the very tiny signals from the phenomenon.

Analyse it Geo. The first stage haven't negative feedback which is present in all emitter resistive load configurations. It was intentionaly changed for the dynamically load which keep change momentarely accroding to the input signals. Same worth for the collector load where is no constant resistive load but here load is dinamically changing. On this way we would get better power amplification and very low output impendance while after detection stage we get pure and clean LF signal without distorsions from the phenomena excitation. As you well know the main sources of noise in the circuist like it is primitive Alnso PD magnetic receiver which their authors had presented like the biggest engineering art all the time but in reallity is not worth building and spending precious time. So as i said the big resistive values are really unacceptable for any lrl frontend receiver. I am wondering how no one experienced electronic engineer doesn't see that or doesnt want to see the real facts which are really basic terms in electronics for the novices.

In presented circuit the main amplification are coming fom the two special ferrite rods which were connected consistently. In fact every new attached rods in this configuration would improve SNR while maintaing highest possible gain without the self-oscillation of the circuit. Also this cicuit has AGC loop with automatically self biasing which is not the case in any commercial Mineoro LRL and also any lrl schematic at this forum. Also this circuit is insensitive to the low battery power which is not the case in Alonso's and any other receivers.

People.
I don't ask all of you to belive me but to understand me. Withouth understaning no one idea has worth.

PS: As you know a lot of LRL secrets i think it wouldn't be a problem for you to enter the needed element's values and make sucessful experimens. Thats for now.

Regards
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  #238  
Old 12-26-2023, 07:20 AM
Yusufyaba Yusufyaba is offline
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geo. The way to block out noise is through a very strong stimulant. I know I'm wrong.
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  #239  
Old 12-26-2023, 09:43 AM
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As i know no way to reduce the background noise.
Our effort is to bring out the signal of the buried object and not to block the noise.
Anyway... at some terrens it's so so difficult
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  #240  
Old 12-26-2023, 09:49 AM
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Quote:
Originally Posted by Dubulumach View Post
This special configuration with multiple feedbacks improve SNR while still maintaing high gain enough for catch the very tiny signals from the phenomenon.

Analyse it Geo. The first stage haven't negative feedback which is present in all emitter resistive load configurations. It was intentionaly changed for the dynamically load which keep change momentarely accroding to the input signals. Same worth for the collector load where is no constant resistive load but here load is dinamically changing. On this way we would get better power amplification and very low output impendance while after detection stage we get pure and clean LF signal without distorsions from the phenomena excitation. As you well know the main sources of noise in the circuist like it is primitive Alnso PD magnetic receiver which their authors had presented like the biggest engineering art all the time but in reallity is not worth building and spending precious time. So as i said the big resistive values are really unacceptable for any lrl frontend receiver. I am wondering how no one experienced electronic engineer doesn't see that or doesnt want to see the real facts which are really basic terms in electronics for the novices.

In presented circuit the main amplification are coming fom the two special ferrite rods which were connected consistently. In fact every new attached rods in this configuration would improve SNR while maintaing highest possible gain without the self-oscillation of the circuit. Also this cicuit has AGC loop with automatically self biasing which is not the case in any commercial Mineoro LRL and also any lrl schematic at this forum. Also this circuit is insensitive to the low battery power which is not the case in Alonso's and any other receivers.

People.
I don't ask all of you to belive me but to understand me. Withouth understaning no one idea has worth.

PS: As you know a lot of LRL secrets i think it wouldn't be a problem for you to enter the needed element's values and make sucessful experimens. Thats for now.

Regards
Hi Dragan.
As u know i have stop to try with magnetic field receivers.
I play only with 2 types of lrl.
1. With radioactive antenna and
2. by measuring the total noise.

Regards
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  #241  
Old 12-26-2023, 09:59 AM
Dubulumach Dubulumach is offline
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Hi Geo

Yes Geo has a right. No way to reduce the background noise because its etheric noise due to etheric wind.

But we can improve SNR ratio of the receiver circuit and catch the tiny signals from the phenomenon.

1. Use special ferrite rods for a wanted frequency range
2. Don't use high values resistive loads
3. Shrink the receiver's bandwidth to get it very narrow, improving Q factor and free signal from the wideband noise whick rise quadratically.
4. Use minimum number of componnets in the receiver's circuit because every new one bring own self noise to the circuit.

Criogenically techniques we don't get into the account.

Regards
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  #242  
Old 12-26-2023, 03:08 PM
kostas87 kostas87 is offline
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Hello, Dubulumach!
If the Q is increased, its square oscillation will also increase ..a very high Q and with precise tuning at a frequency (Ψ) will bring a gain above 5v~ ..but again this can be corrected..etc. .
The point is that you have worked to find a proper ferrite two piece receiver and you have gathered the high Q value of the effect can you give us details about the double ferrite?winding etc.
we have coils that catch part of the Φαινόμενο the signal but no a good two piece ferrite coil..
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  #243  
Old 12-29-2023, 09:16 AM
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Quote:
Originally Posted by Dubulumach View Post
nice work.. as I know you using draw by splan .. you forgot chamber antenna
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  #244  
Old 12-29-2023, 09:20 AM
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Quote:
Originally Posted by Dubulumach View Post
other thing .. is really working as long range ?
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  #245  
Old 12-30-2023, 11:35 AM
Dubulumach Dubulumach is offline
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Any lrl need Tx stage (stimulator) precisely tuned with the receiver to work.
Schametic i have gave is a dynamic frontend receiver much better than primitive schematic of Alonso PD or any other schematic at forum. Transistors you need low noise type and diodes are germanium type. Ferrite coils should be tuned for the desired freq.range. Experiments are the judges of theoris so if you need it you will try it.
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  #246  
Old 01-12-2024, 12:52 PM
Yusufyaba Yusufyaba is offline
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Quote:
Originally Posted by Dubulumach View Post
hello dubulumach
I wonder if there is a component list for message 229.
If there is no special situation, I can also wait by e-mail.
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  #247  
Old 01-31-2024, 10:49 AM
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Quote:
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Hi Dubulumach

Please send the parts list to my email.
Thank you
My email

aft72005.1@gmail.com
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  #248  
Old 02-25-2024, 08:00 AM
Pahom Pahom is offline
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Quote:
Originally Posted by Dubulumach View Post
At first glance, the circuit is simple, but it is very capricious to set up. Even with high-quality parts, it may stop working due to changes in temperature or humidity. It?s interesting how the receiving path of the FG-90 behaves. If you have experience, please share your observations.
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  #249  
Old 04-03-2024, 11:19 PM
ishtar hunter ishtar hunter is offline
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Quote:
Originally Posted by Geo View Post
Ferrite core of magnetic receiver is IP6 / 2000 (potcore).
I have n't details of the other ferrites back of the ion chamber.
FG90 has n't IR receiver
I attach the picture of my fg 90 and IR reciver
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  #250  
Old 04-04-2024, 12:03 AM
ishtar hunter ishtar hunter is offline
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Quote:
Originally Posted by Dubulumach View Post
Hi dear Dubulumach
In my fg90 , to pin freq i have 864 HZ with 4.7 volt but this frequncy
It passes from R7 resistance to osc pin .
How many ohms is R7? 1M ohm????
In my IR transmiter we have 153 HZ with 7 volt , but my receiver IR is defective ، What type of IR receiver can i replace?
My device is faulty.
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