dch 85 pistol

[folharin]

18631
coil stimulator dch 85m

[folharin]

I made a clone dch pistol and got good results in the field

[folharin]

I gradually post the schedule for everyone to do

[folharin]

18632

part beep generator

[folharin]

part sensor
18633

[folharin]

click on image to save it is good to see
ICs are 555 and sensor 741 is

[folharin]

I'm posting this scheme for those who have an interest in making and improving the directional

it really works near objects buried old but is not directional

[Sneshko]

Bravo folharin!
Very good - Thank you very much!
I have a few questions for you.
Please specify:

Question 1

http://img823.imageshack.us/img823/4885/6j7v.jpg (http://imageshack.us/photo/my-images/823/6j7v.jpg/)

- Is the green wire condenser. If so, that his label?
- The value of capacitor 103 is pico farad, nano farad, micro farad?


Question 2

http://img31.imageshack.us/img31/2146/0a50.jpg (http://imageshack.us/photo/my-images/31/0a50.jpg/)

- Where the body hangs coil (ferrite or plastic or air)? What is the diameter of the body?
- That the component of the 100K resistor or capacitor?


Question 3

http://img850.imageshack.us/img850/1808/ehxg.jpg (http://imageshack.us/photo/my-images/850/ehxg.jpg/)

- Capacitor 104 is in nano, pico or micro farad?
- Where the body hangs coil (ferrite or plastic or air)? What is the diameter of the body?

Dear folharin!
Thank you in advance for your answer!
Wish you all the better
Sneshko

[folharin]

cap 103=10nf

100k=100nf

cap wire green=560k,0,56n
coil air

[folharin]

coil stimulator 12cm diam aoil air

[mustefa ubram]

Congratulations folharin
Please explain how this circuit function.?
Very low power transmitters:|

[michael]

Hi Folharin
Thanks a lot for presenting such info.
It seems it’s a passive receiver without any oscillator, yes?
Cos in my country PRs give no result, but the ones with oscillator work more or less.
Regardless of that, Would you please notice to these:

1- which kind of test target have you detected? Please reflect all details; metal type & size and detection depth & distance with age of burial.

2- clarify some vague info; the most important is coils formula and their positions.
In coil stimulator part; which type of coil? 35 turns of which wire? What diameter?
And in Sensor part we see a 8 turns 1mm coil connected to 5 Cm antenna, is vague.

3- is IC 741 the UA741?

If you have serious decision to help others to make a true copy of this detector I think is no problem for you to take some clear photos of your own made device from appearance to inside the box, and mark how is the exact positions of all components especially coils. Cos as I know e.g. stimulator coil position to antenna coil is important.

Regards.

[folharin]

This is an original copy of dch 85m mineoro
he issue beeps in field tests 20 years silver and gold coins buried approximately 3 meters distance
I'm posting this scheme so that they can build and help me make it directional el issued beeps in front and sides and is not precise location of the buried object

[detectoman]

brother folharin very thanks by your post and help, i say you, what the lrl how dchs cant pinpoint good center the subject, also the signal is cut in middle when you pass over, you need of md help, for a major pinpoint you need other class antennas configurations, ferrite can be major option, but ferrite isnt possible make easy manner for rx and rx relations, isnt easy this you need, may be if your put signal modulation be most direcctional, you work today whit disperse signals, those derivate around of coils how a circular electromagnetism, may be if you put a dc coil around all these total antenn what concentrate the signal at front, wtb this only my teory, my congratulations for your actual succes whit these circuit atte your brother hobbist detectoman :)

[detectoman]

brodhy folharin, can you please say me what figure is in your avatar image? jajaja, semms impresive, jaja a embarace

[Morgan]

brodhy folharin, can you please say me what figure is in your avatar image? jajaja, semms impresive, jaja a embarace

yes,thats realy interesting,it is something underwater ?...

[Geo]

This is an original copy of dch 85m mineoro
he issue beeps in field tests 20 years silver and gold coins buried approximately 3 meters distance
I'm posting this scheme so that they can build and help me make it directional el issued beeps in front and sides and is not precise location of the buried object

I don't see the switch for "oro" or "plata".

[folharin]

switch silver or gold is the same configuration 1mm wire loops 8
looking at old messages on the forum that has pictures dch antenna

[folharin]

my avatar picture is gold dust when I worked in the dredge mining of guyana

[detectoman]

jajajaaj folharin! i only see here a head whit much hair ..

[detectoman]

fhn. i no see any gold dust here mm jaajaja

[mustefa ubram]

Perhaps this schematic photo are the most effective:rolleyes:
http://www.longrangelocators.com/forums/attachment.php?attachmentid=17573&stc=1&d=1322929633http://www.longrangelocators.com/forums/attachment.php?attachmentid=17574&stc=1&d=1322929633

[folharin]

this schematic contains errors

[detectoman]

jajaj

[detectoman]

may be hung made these

[BENZINAS]

mr folharin put a photo of the complete construction of the detector if you want to see the design !!

[folharin]

18635
this is my dch pÃ*stol

[folharin]

18636

[folharin]

18637

[Geo]

The coil of coil stimulator must be vertically in the center of the loop.

[detectoman]

no geo!., these folharin stimulator is in vertical, may be you like say, horizontal ,parallel at ground how in original dchs, may be vertical this cause the problem of direct pinpointing, folharin my congratulations for your operative prototipe, semms very functional, good design, thanks by show us, very good ideas :)

[detectoman]

jaja, young folharin, a only problem i see in you project, what this isnt waterproof, may be rain can kill you work :)

[detectoman]

folharin, may be you should put your image avatar in full color in your coil plate, jajaj semms pantastic :)

[detectoman]

anybody has begin the folharin circuits?

[jocelito]

circuits seems to have errors, look at the photo of stimulador has 3 capacitors, the scheme has only one

[mustefa ubram]

hi folharin
What is the role of stimulating circuit and coil stimulator?
How is it detected?

[folharin]

18639
correct schematic coil stimulator

[jocelito]

ok, thanks for correcting folharin scheme, will build dch85 and assist where necessary

[jocelito]

sorry for my english, I do not know any English

[folharin]

18640
schematic correct part sensor

[folharin]

18641
part energy source

[jocelito]

pics of my clone dch85
https://www.dropbox.com/sh/nc445hro0bbvtdn/nwuCCpAdRj

I did not test yet

[mustefa ubram]

folharin
It really makes it clear gold?

[BENZINAS]

wait for results !!!!!!!!!!!!

[Geo]

wait for results !!!!!!!!!!!!

Not so good for Greece...:angry:

[detectoman]

geo, what say you us? too you no obtain succes whit dch- folhari prototipe?

[Geo]

I tried it some times before 3 years, no good results:frown:.

[detectoman]

sir geo: these sems very bad notice by we, if you cant how expert E.E, semms project isnt easy, shure you conect a batteries?

[DrTech]

sir geo: these sems very bad notice by we, if you cant how expert E.E, semms project isnt easy, shure you conect a batteries?


Detectoman DCH85 with pasive receiver... or "PDK DCH85" !is same!!!:rolleyes:

[jocelito]

clone dch85 very weak, passive receiver stimulator is much better
clone dch85 test tv 50cm
passive receiver stimulator over 3 meters

[detectoman]

drtech: exakly here in these dchs is the circuit 5 of alonso. semms vary atemps from mineoro for sell differents experimental products what may be those never was exaust tried also in other countries jaja and them aware for succes in owner´s result, wtb they sell in hig price, $$ mineoro each year change all internal circuit of all models, but any mineoro design have effective aknoloadges worldwide how good products, all are only expensive experimental prototipes

drtech, exacto alli esta el circuito 5 de alonso, se ven varios intentos provenientes de mineoro para vender diferentes productos experimentales que tal vez nunca fueron exaustivamente probados en otras latitudes, y ellos esperan por el exito en los resultados de sus propietarios, como sea ellos venden de todos modos en alto precio, dinero, dinero, mineoro cada año cambia todos los circuitos internos de todos los modelos pero ningun diseño tiene efectivo reconocimiento alrededor del mundo como buenos productos, solo son caros prototipos experimentales

[detectoman]

my last lrl october 2013, a dchs, my personal version, no tx, no regulator, no bostered circuit 555
http://www.youtube.com/watch?v=vFMnce0oxpw

[mosha]

Nice LRL, made from kitchen material :)

Regards,
Mosha

[DrTech]

Felicidades..... Super Detector DCH

[detectoman]

the handle of my prototipe came of a base part water pump of the air conditioning the sistem is based in lm741 ic, thanks to folharin by dchs circuit idea

[jocelito]

Your dch more like musical instrument theremin
https://www.youtube.com/watch?v=Ptq_N-gjEpI

[detectoman]

mm..

[detectoman]

jocelito; may be the treasures came out of ground when i singing whit my lrl? jajaj

[detectoman]

yours should say me how i need write right in english my comments

[jocelito]

detectoman ok, I'm doing in my motificaçoes dch clone to make it work better, I think folharin scheme that still has bugs

[detectoman]

ok ok jocelito, you continue killer pest of folharin circuit, jaja

[folharin]

new

[folharin]

nublade day before rain .detects 3 meters field test 5 years buried coins silver and coin gold!

[folharin]

is uncertain!I'm working on clone alonso pistol!

[detectoman]

hello folharin, these your dchs 85 new version 215 semms very interesting, but i quest these stuff have function or only semms very apantalladora? :)

[detectoman]

we today know, what if a lrl no has right specific circuit resonance no work for specific metal to functions how large distance for find those

nosotros ahora sabemos que si un lrl no tiene la correcta circuital resonancia para determinado metal no funciona a largo alcance para encontrarlos

[detectoman]

at i say specific resonance, no im refered to determined right frecuence but optimal circuit retro stabilization self

[detectoman]

the lrl whit ferrites isnt good due to them need right arrives north shout direction, and suffer interrumptions on diverse mineralizations terrain conditions or rf lines, the franco italy lrl whit directionally anten is major due these are major pinpoint, my lrl in my avatar, whit aluminum aro is middle directional but very sensitive, the lrl whit coil how morgan stuff, are too earth polarization condition deppendent, a major lrl should no suffer the site planet meridional earth lines of distinc hemisferes, due these change the lrl stabilizacion circuit operation, too the transistors have lines polarities affected for earth magnetism and position, so need right conditions for work, a lrl can a day work and at other no work for nafthy

[detectoman]

all these distinct conditionallies difficults gave protection at field when hobbist true lrlsmans what study the phenomen in each situations detailed, so lrls prospecting isnt easy, also each distinct lrl configuration work in different form time and sites

[taxma1981]

hi!!!i need help with the pinout of the 2n2222

https://ibb.co/hFiw0e

[taxma1981]

The projects have mistakes, with a correction works well
https://ibb.co/c3qUMK

[taxma1981]

https://ibb.co/kKSMke
https://ibb.co/nMfVdz

[Sreekumar]

Hai brothers i"am new member is the forum, please help me coil stimulator details (wire gauge,turns etc.. )

[Morgan]

45 turns,0.20mm 5 cm diam.

[Sreekumar]

Thank you brother,god bless you

[Sreekumar]

I"am build this circuit,i use nicolas pdk audio amplifier led is off ,how to detect target

[WM6]

,how to detect target





Detecting target is very easy, if you know where target is hidden.




.

[Sreekumar]

[QUOTE=WM6;159669]Detecting target is very easy, if you know
where target hidden
I build the circuit,led is off but

[Sreekumar]

Is it possible to use audio amplifier instead
Of a beep generetor

[Morgan]

maybe you should try the oscillator coil in HORIZONTAL position

[Pahom]

Yes, there is progress on this project. But it is not clear how correctly .... You can configure the output from lm741 so that the response from the target is either positive or negative.

[Morgan]

https://ibb.co/kKSMke
https://ibb.co/nMfVdz

Hello

you built the DCH project , for me this schematics has some mistakes,
is it working fine ?

[shahrayar]

Does it have to be a specific frequency? I used 156 Hz, the last frequency is about 4 kHz
I used a loudspeaker
Can you explain more

[shahrayar]

Possible some blueprints for this pistol

[shahrayar]

:razz::razz::razz::razz:
https://www.longrangelocators.com/forums/attachment.php?attachmentid=20538&stc=1&d=1589686945

[shahrayar]

When you turn it on, you hear a beep, then it is only affected by gold:lol::lol:
https://www.longrangelocators.com/forums/attachment.php?attachmentid=20811&stc=1&d=1633449261
https://www.longrangelocators.com/forums/attachment.php?attachmentid=20812&stc=1&d=1633449261

[Pahom]

Everything is correct. Everything is the same in the assembled layout. But when you tune with the oscillator to the desired threshold, everything works fine. Only the distance is not great. And that is why those who gathered do not use this project. A small detection distance, although there is a choice of metal search. The most long-range one that has been demonstrated on the forum today is MORGAN's PDK 60-90 meters for a small target!

[kostas87]

Everything is correct. Everything is the same in the assembled layout. But when you tune with the oscillator to the desired threshold, everything works fine. Only the distance is not great. And that is why those who gathered do not use this project. A small detection distance, although there is a choice of metal search. The most long-range one that has been demonstrated on the forum today is MORGAN's PDK 60-90 meters for a small target!

hello my friend Alexander! dch 85 works for buried metals in your area in Russia; it does not matter if it is for 4 meters or 30 meters, The magic is to detect from a distance ...

[Pahom]

hello my friend Alexander! dch 85 works for buried metals in your area in Russia; it does not matter if it is for 4 meters or 30 meters, The magic is to detect from a distance ...
Hi Costas! So far, everything is only at the polygon. I need to figure out a lot more, for example, with coils ... silver, gold, that this is a filter ... or the reception frequency is changing is not clear yet.

[kostas87]

Hi Costas! So far, everything is only at the polygon. I need to figure out a lot more, for example, with coils ... silver, gold, that this is a filter ... or the reception frequency is changing is not clear yet.

from information I have from Brazil, they say that dh3 is very good, similar to 85dch shematic ... it detects many metals together. gold, silver, aluminum, copper ... without operating frequency it is better to detect a phenomenon, if you try to no one tuning may not work well ... try to detect the phenomenon as energy, not as frequency ...good luck my friend 🙏

[Geo]

Hi !!!

DCH85 is a static detector, not catch magnetic fields so it has n't stable properties.
It can detect an object from 30m today and another day from 3m or zero.
But if phenomenon is strong then it works for sure!!!

[Morgan]

18641
part energy source

Hello

you gave info about:

OSCILLATOR CIRCUIT

RECEPTOR

BEEPER CIRCUIT

VOLTAGE REGULATOR CIRCUIT (no info)


are you sure this schematic is working ?

[Morgan]

Hi !!!

DCH85 is a static detector, not catch magnetic fields so it has n't stable properties.
It can detect an object from 30m today and another day from 3m or zero.
But if phenomenon is strong then it works for sure!!!

also if umidity is more than 85% the electrostatic locator not work very well...

One question, do you built this DCH of Folharin,is it a working project ?

[Geo]

I have work with it many years ago.
It is the basic schematic of Iconos or blue pistol from Esteban..... you remember.

[abdou2014]

Hi !!!

DCH85 is a static detector, not catch magnetic fields so it has n't stable properties.
It can detect an object from 30m today and another day from 3m or zero.
But if phenomenon is strong then it works for sure!!!

hi Geo, you speak about the complete circuit with TDA or without ???

[Geo]

I speak for simple DCH85 without TDA (2 transistors input and 741)

[abdou2014]

Thanks, is the stimulator necessary ?

[Geo]

Yes...

[abdou2014]

Thanks , does this stimulator work well with DCH85 ???

[Geo]

Why you ask for the stimulator of DCH????

[abdou2014]

maybe it is weak and we need to change it :(

[brain]

this is the PD I made. I'll post the rest based on the answers given. It's a bit cumbersome.:)

[abdou2014]

after some time I will post the pictures of my mineoro, not yet finished i speak about my new version , according to the mineoro photos of the forum, it is a regenerative ,
Mr Brain , is your pd work in the test field ?

[brain]

a few pictures
https://ibb.co/VxRt9Q0
https://ibb.co/nQRMYhv
https://ibb.co/tpZwdQM

[abdou2014]

good work, what is the principle ?

[humhum]

a few pictures
https://ibb.co/VxRt9Q0
https://ibb.co/nQRMYhv
https://ibb.co/tpZwdQM

Very good (?ok g?zel ) .

Here Your circuit produce High potantiel Voltage near 20Khz in selected Freq. ,
( 20 Khz HV Gen)
You also can create from 9 Vdc litle Battery to 500Vdc in 20Khz with using small mH Coil,
PIC and few parts , this is 5cm X 5cm PCB circuit. A lso Result .

[brain]

there is more.
You lay 33 khz tx in the ground as two wires. When you move between the receiver and these two cables, a phase shift occurs.

[kostas87]

there is more.
You lay 33 khz tx in the ground as two wires. When you move between the receiver and these two cables, a phase shift occurs.

very interesting Brain! the buried metal is detected; A similar system is the tesla system,he described to us by esteban it detects buried metals with HV .

[brain]

very interesting Brain! the buried metal is detected; A similar system is the tesla system,he described to us by esteban it detects buried metals with HV .
This is Part of the Receiver Circuit I sent you. The Transmitter Circuit is Separate.

[Douglass]

What is the difference between the 2 transistor dch for the 4 transistor with regulation ??

[aft_72005]

:razz::razz::razz::razz:
https://www.longrangelocators.com/forums/attachment.php?attachmentid=20538&stc=1&d=1589686945

Hi .. I try this circuit ... TDA7000 receiver work prefect lonely .. but when coupled to Darlington transistors .. then TDA 7000 stop working .
my opinion this circuit not correct

[Geo]

Ohhh ....yes.
This schematics has many errors:(
A part of this schematic was sent to me by Andreas before many years ago and it was right. I modified it and gave to a member and he gave it to many members, but this schematic has many errors because i drawed them so:lol:
I don't hae the original schematic but i remember that there was a LM386 between TDA7000 and darlington.U can connect the output of 386 to darlington via a audio transformer from old transistor radio or .....

:)

[aft_72005]

Ohhh ....yes.
This schematics has many errors:(
A part of this schematic was sent to me by Andreas before many years ago and it was right. I modified it and gave to a member and he gave it to many members, but this schematic has many errors because i drawed them so:lol:
I don't hae the original schematic but i remember that there was a LM386 between TDA7000 and darlington.U can connect the output of 386 to darlington via a audio transformer from old transistor radio or .....

:)

base on my experiment the dch85 lonely worked perfect ...why did add tda7000 receiver ?

[Geo]

Mineoro had use TDA7000 years ago at previous model as VC86, VD88, 2000 etc.
WHY??? I am not sure.... maybe it wanted an easy electromagnetic detector together with the static....

[aft_72005]

Mineoro had use TDA7000 years ago at previous model as VC86, VD88, 2000 etc.
WHY??? I am not sure.... maybe it wanted an easy electromagnetic detector together with the static....

yes , some modes with TDA7000 . but not at input .
there isn't true and correct diagram .

[abdou2014]

all members, the DCH receiver can work without TDA and its very sensitive to static field, i did too many experiment with it and understood all it's secrets :cool:

[aft_72005]

base on my experiment the dch85 lonely worked perfect ...why did add tda7000 receiver ?


As my experiment with my homebrew DCH85 without FM receiver , can detect from 3 meter .
buried copper 10 x10 cm 12 years ago

[abdou2014]

you were right, I added a VLF preamplifier to my DCH, with low pass filter and 50 hz notch filter

[abdou2014]

Hi aft_72005, what's the distance between the receiver coil and stimulation coil on your DCH ?

[aft_72005]

Hi aft_72005, what's the distance between the receiver coil and stimulation coil on your DCH ?

Hi abdou2014


about 5 cm .

[abdou2014]

Thanks, when i test my dch its very sensitive to spark and static field, impossible to work on area near power line even if its about 1Km far, is it also for you ?

[abdou2014]

The TDA is for CAP reception, we can use two rx coils TDA and DCH , or use TDA as stimulator for DCH, The question for master members is : the TDA cap reception alone without DCH coil can capture the phenomenon ???

the adventage for TDA rx alone is the immunization to the interf?rences .

[abdou2014]

the real passive receiver of Alonzo is also cap rx, not what you found here modified as E-EM receiver, it work on VHF range :cool:

[aft_72005]

Thanks, when i test my dch its very sensitive to spark and static field, impossible to work on area near power line even if its about 1Km far, is it also for you ?

No. not sensitive to EM filed .

[abdou2014]

I understand that we do not have the same configuration, what type of field or energy is your DCH sensitive to?

[abdou2014]

I tried many configurations, like positioning the vhf oscillator in a way that it reacts only to non-ferrous metals a few centimeters from the antenna .... but I want to know which of these configurations you worked with ???

[BENZINAS]

Hi , does any of you sells his hand made dch pistol ?

[abdou2014]

I found 5 years ago with this config a target at 60 meters but at this time the tuning was on limiting zone broadcast

[aft_72005]

I understand that we do not have the same configuration, what type of field or energy is your DCH sensitive to?

Sfiled detector .

[aft_72005]

Hi , does any of you sells his hand made dch pistol ?

Hi
No for sell

[aft_72005]

I tried many configurations, like positioning the vhf oscillator in a way that it reacts only to non-ferrous metals a few centimeters from the antenna .... but I want to know which of these configurations you worked with ???

I already sent you a message in your private box, but you did not reply.

[aft_72005]

I found 5 years ago with this config a target at 60 meters but at this time the tuning was on limiting zone broadcast


DCH 85 has special settings that I think not everyone can do.
The receiver circuit must be adapted to the transmitter part. You must have done it. Because your circuit was sensed from a distance of 60 meters.

[abdou2014]

I already sent you a message in your private box, but you did not reply.

excuse me , here's my mail and tell me not the setting data only how test it and i understand

[abdou2014]

hakim2000pc@gmail.com

[aft_72005]

hakim2000pc@gmail.com

I sent you Email .

[aft_72005]

I tried many configurations, like positioning the vhf oscillator in a way that it reacts only to non-ferrous metals a few centimeters from the antenna .... but I want to know which of these configurations you worked with ???

One of the DCH designs used a UHF receiver. Maybe you made that design.
My DCH works with VLF

[abdou2014]

Very cool this receiver , now i know how i tune it with any reception frequency i want receive, i think Morgan work on NMR 30-35Hz, don't know if better than VLF, test on field :D

[abdou2014]

Thanks to all member who poste us this gift :D Esteban Geo Morgan