As you can see #89 ......with perfect calibration all together coils-housing detect one euro ONLY 12CM DISTANCE..
Alonso PD don't work as a real MD detector, but as LRL
If you replace C4 (see #116) with value <10nF, you have more distance detection.
Ofcourse with C4=100pF... 470pF you have best distance detection.
I made this clone with the true values of the components posted here few years ago.
I saw this is real "distance detection" of omega-coils when everything configured correctly. In this case we have a real LRL and a "poor" MD.
You can ask the morgan. He has the original PD, he know well the real distance detection and measurement real frequency tune. If he publish real infos (Rs forum), i don't know, because, i am not member
My opinion... he never publish real infos or he cannot build a real clone (i am sure for this)
If we want a better MD section, ofcourse we can replace with other schematics.
I think later i replace this section
Regards
Ok Andreas,
Well then where we start again?
I need you to know some things about my experiences with the developing of my PD'S before starting with all this.
1 - I have two PD, one with six PCB’s and the other with a single PCB as presented in the Greek forum ok?
2 - The single PCB PD is more stable than the six PCB’s.
3 – In the PD single PCB I put two flat ferrites Alonso identical to his PD pistol.
4- In the PD six PCB’s, I put two round ferrites of 6 cms. long each one by 1 cms thick.
5 - The schematic I used for the two PD’s was exactly the same in RS by Qiaozhi version 1.20 because it had corrected the polarity of the capacitor # 33 uF 10.
6 - the omega coil and ferrite were made with almost the same omhics resistance just with different calibers magnet wires (for coil omega only) because the coil ferrite I put the same type of wire 0.30 mm but with a different turns quantity to that exposed in RS ;
It is important to say that the way that I did for winding ferrite was different from that presented in RS because with the turns exposed in RS never detect a small magnet or just to 1cm away from the ferrite, but with the new way of laps that I put on a ferrite, this detected the small magnet to 20 Cms. away from the ferrite, and only when the PD is working together Omega-Ferrite; I've also noticed that the magnet is detected by the omega, in only omega mode, but only in a shorter distance away maybe about 7 cms.
7- When I adjust the two PD's and pointed toward the ground, the pistol beeps in direction to the soil detect the capacitance of the soil and I don’t know if this is normal or how can I fix this, I've been seeing information exposed by Esteban about it but i don’t understand what he says of how to correct this detail; Esteban says: “We can find a good compromise between the both (sky and soil)” and he say that I have to change wire the ends of the RX: “Invert extremes of receiver coil and put your hand in both sides of rec. coil, time by time. You note in one extreme capacitive effect (a kind of null) when you put your hand. If the capacitive effect is produced in down part (this is, a kind of null), invert the connections of the extremes of the rec. Coil. Is better the increasing of audio in the down part when you put your hand, this is, the part of rec. Coil near the soil”.
I have seen with my own eyes what they can do the Alonso lrl’s when he was here a few years ago I am sure that these well calibrated equipment can do good things
9- The PD one PCB have a potentiometer multiturn 50 k.
10- The PD Six PCB’s have a potentiometer one turn 50 k.
All this is to begin to get an idea of what I did, I would like you to show the full Schematic in one piece or as exposed by Qiaozhi since I have some confusion regarding the schematic that you exposed in the area of the coil connections to omega, because the RX of Qiaozhi Schematic of 1.20 has three wires and i see only two in your schem., and TX coil has 5 wires which I can’t see on your schematic, i only see 3 connections. Anyway I will try to analyze it with the schematic of Qiaozhi.
lrman and all, the sky-ground effect was for me a big problem when i building the pd whit rx & omega, the original pd circuit are very versatile, whit other coil recipes, then also you have a great diversity of present phenomens whit each distinct maners of make your circuits or power measures, lrman i am in chihuahua mexico but today no have very much time for my lrls or experiments due my busy particular works, the sky effect can dissapared changing whit other coils recipes, also the sky effect automatic dissapared when the pd go at stabilzed function, then came devenue sensitive stabilized lrange detection, the pd have very much secret of operations semms easy but isnt sometimes
this scheme has changed the components and coil omega I believe that number is not correct to aspire
12 +3 +5 +12 is Heathkit gd 348.small diameter coil requires a greater number of turns of wire
tests done on the same key used in 3 positions pd show that omega loop and ferrite are always linked in position 1 and 3.This key is the same as dch not change anything
Last year i have a mail by seden if is possible drawing a PD only for gold.
This is a point very interest for me and ofcourse i try find solution for this.
For experiments i use my real clone alonsoPD with full modifications (for example change MD section with other circuit stability), build a new sensor via lathe and laser cutter.
After two months study and build many-many prototypes sensors, i think find solution. The big problem again is calibration all together. In this case i use other way for find delicate for all work together.
Joke !!! i know very well what i need for calibration and all steps for fine tune, but in practice after three days without results, i find solution (very difficult)
Please look video https://www.youtube.com/watch?v=1alv...ature=youtu.be
This is not dream, but real. No ground or sky effects. No detections earth lines
The unit is very-very stability and silence for other metals.
Interest is PD work without motion or very-very slow motion
enjoy
Last year i have a mail by seden if is possible drawing a PD only for gold.
This is a point very interest for me and ofcourse i try find solution for this.
For experiments i use my real clone alonsoPD with full modifications (for example change MD section with other circuit stability), build a new sensor via lathe and laser cutter.
After two months study and build many-many prototypes sensors, i think find solution. The big problem again is calibration all together. In this case i use other way for find delicate for all work together.
Joke !!! i know very well what i need for calibration and all steps for fine tune, but in practice after three days without results, i find solution (very difficult)
Please look video https://www.youtube.com/watch?v=1alv...ature=youtu.be
This is not dream, but real. No ground or sky effects. No detections earth lines
The unit is very-very stability and silence for other metals.
Interest is PD work without motion or very-very slow motion
enjoy
Great work my friend. I wish you good luck and too much improvement in your project. If we can detect from distance 5m we can detect also from 50 m and maybe 5 km or over.
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