A very impressive piece of work!! I would like to build one however I can't find 0.25 mm wire. Could I use 0.3mm instead? How many turns would I need? Hope you can help me out here.
Sehr interessantes Video. Dank dafür! Sofern ich das richtig verstehe, könnte ich die Spulenplattform auch aus mit Glasfaser verstärktem Balsaholzkern konstruieren, da ich keinen unmittelbaren Funktionsgewinn im Bezug auf die elektronische Wirkweise der Spulen durch die die Verwendung eines Thermoplasts erkenne. Sehe ich das richtig so? Oder habe ich etwas übersehen?
Hello!I have a question about the simulation of this schematic.I am using Orcad 9.2 and i have problems with block 13 and 12.I don t know why my audio amplifier doesn t do the work and in think the main problem coud be the output of the 12 block.Can you help me?Or give me an idea of what can be the problem?Or can you show me what should be the output when it detects a metal?
Just finished the Barracuda, Have a Surf kit waiting for the Some Day. TGSL is on the bucket list but mine will be modded to run at 25Khz for small gold. Good Video. Thank You.
I am building at the moment a CC coil because I am looking for artifacts. You are probably looking for minerals, so the 25Khz. My respect, good luck for the project!
Do you have this unit for sale yet? I would be interested if the price is cheap enough. Also does the graphene \ graphite layer help in the detection of gold or hurt the depth. I want to tune it to find only gold at about 1 1/2 feet max.
Excellent video. I would like to have discovered it before starting my project. I'm making my coils for the IB metal detector. I reduced the voltage on the receiving coil by less than 1mVrms @ 10kHz. Why didn't you set the voltage on the receiving coil to a minimum? Thanks
@@UnitSe7en Imagine a signal with 1mVpp at the receiver, added with 100mVpp of continuous unbalance between the transmitter and receiver coils. Now imagine the same signal with 1mVpp at the receiver, added with only 1mVpp of continuous unbalance between the transmitter and receiver coils. Which condition is the easiest to detect the signal?
minimum signal voltage like 1mv peak t peak will be in certain phase woth reference to the tx signal , then discrimination will not work properly. A combination of phase and lower voltage on RX ends are required for discrimination to work properly, not just a lower voltage , in short it is an "And" function voltage × phase 🙋
Hab noch eine Frage: Wie hast du die Spulen fixiert bevor du den 2K - Kleber draufgetan hast? Mir fallen die Windungen auseinander und die Schnur bekomme ich nur schwer wieder runter.
Hallo Mathias! Fixiert habe ich die noch lose Spule zunächst nicht mit einer Schnur (Faden), sondern mit einem 4mm breiten Streifen Klebeband sehr steil gewickelt. Achte darauf, dass die Spule möglichst kompakt bleibt. Dannanch kam ein 5 min. Epoxi darüber. Nicht zuviel ! Als es es noch nicht total fest war, zog ich das Klebeband wieder ab, und strich noch eine weitere Lage Epoxi drüber. Also Geduld und viel Glück! EPAE
what happens if you do 3 rings inside each other and 3 on top of the existing ones... so you have a total of 9 coils in a electrical heater pattern? how deep could that go? and how much energy?
Hi Patriche! The shell itself is not shielded with something. On the contrary, I have roughened the inner surface slightly , for a good connection with the resin. Also for thermoforming I didnt use anything. Graphite is only in the shielding of the coils.
The wire that you used to contact the graphite varnish can spoil the performance of the device, as it forms a closed loop next to the winding. The fact that it goes at an angle at every point does not really matter, because integrally it forms a single conductor. However, it is apparently impossible to completely abandon shielding, therefore, the ends of the wire should be connected to the ends of a symmetrical resistive voltage divider, the resistance of which should be selected based on the balance of noise immunity and signal attenuation. And already the middle point of this voltage divider can be connected to the common wire of the device.
What is the wire type and size of each D coil and what is the wire wrapped over the graphite tape? Awesome job mate. I want to build one for my Garrett AT Gold. I notice that Garrett does something very similar, the use 32ga on one side and 25ga on the other side. All magnetic wire and graphite powder mixed with epoxy as a coating over each coil.
I don't think that shielding materials will effect the depth in a direct way, maybe when you shielded the coil with a certain material, that would effect the inductance some how, that's why you get a greater depth with the graphite shielded search head. Thank you for this rewarding video, I learned some technics from you . Good luck 🙂
Hello, greetings from Mexico, The video is very, very good, it explains everything very well. my question is the following, how to know the frequency. for example for gold, silver, and how to make a coil for a greater depth.
Over my head... but cool to watch. Very skillful. Must be an electrical engineer? Retired? I'd be happy just to make the simplest/basic bare-bones metal detector. Just turn it on and it works.
Hallo Mathias Über die Anschlussdrähte habe ich dünne Schutzschläuche gezogen, Graphitlack drüber gesprayt und die feinen Abschirmdrähtchen herumgewickelt. In der Sequenz 3:20 kannst Du es erkennen. Grüße EPAE
Sie sind Kupfer verzinnt. Es sind einfach Einzeldrähte aus einer dünnen Litze. Egal was du nimmst, es hat die Funktion einen guten Kontakt mit der Graphitoberfläche herzustellen. Die Graphitschicht baut Zentimeter für Zentimeter einen immer höheren Widerstand auf. Einmal herum um die Spule währen das dann einige Megaohm. Das ist dann überhaupt keine Abschirmung mehr. Die zwei dünnen Drähtchen kreuzweise gewickelt sind schon gut! Wichtig ist, das Graphit keine metallischen Eigenschaften hat. Die Spule soll ja auf Metalle reagieren. Also nimmt jedes Metall der Spule ihre Sensibilität!
Great work! I just started to make my own but i have a problem with the correct Copper cable. I can't find 0.25 mm, how can i calculate the number of turns with 0.30 mm or 0.40 mm. Thx.
Hello first. The best coil calculator is the " LCFR" (Lcfr.zip, 4KB), I think. Not to spite of that, the 0.25mm is best suited. I did not get him too, so i used the 0.28 mm. Important is the inductance and the self-resonance of your coil. 14.5kHz and Tx 6.0mH, Rx 6.5 mH. Greatigs!
HI Boi! I think more is not achievable with the TGSL. 3 feet are not reachable. I 'm working on an automatic 'nulling' of the coil. A perfect 'nulling' is the key to good results.
Ich habe jetzt 100k Ohm an der am weitesten entfernten Stelle , und 14 k Ohm am Anfang. Ist das ausreichend? Die Induktivität ist von 6,02 auf 6,04 gestiegen.
Hi ! Du sprichst hoffentlich von der Abschirmung! Die beiden blanken Drähte wickelte ich ja um die ganze Spule (siehe Bild 3:00 Minute). Der Widerstand ist dann überall zwangsläufig so gut wie 0. Selbstverständlich darf es zwischen der Abschirmung und der Spule keinen Kontakt geben. Die Spule muss wirklich gut isoliert sein. Also keinerlei Widerstand! Die Induktivität der Rx Spule beträgt 6,5 mH, die der Tx 6,0 mH. Eine Abweichung von 0.1 mH ist meiner Erfahrung nach unwichtig. Wirklich wichtig ist die "Nullung", aber dies hast du ja im Video gesehen. Die Ohm Zahl des Spulen-Widerstands stimmte bei mir noch nie, da dies von der Drahtstärke abhängt. Tx und Rx ca. 20 Ohm, nicht Kilo-Ohm. Hoffentlich entstand jetzt keine Verwirrung. Grüße!
Ja , ich meinte die Abschirmung. Ich habe bereits eine fertige Spule gemacht vor etwa einem Jahr. Meine Abweichung ist nur 0,02 mH pro Spule. Ich hatte meine Kupferdrähte, so wie du, herumgewickelt um den Widerstand der Graphitabschirmung zu reduzieren und da hatte ich leider noch 100 k Ohm Widerstand an der am weitesten entfernten Stelle. Ich habe dann mit einem Stück Toilettenpapier die Grapitschicht poliert und dann hatte ich ca 15 k Ohm ohne Draht. Ich muss den Draht noch herumwickeln. So wie ich das bei mir sehe schaffe ich nicht unter 3-5 k Ohm. Ich benutze auch Graphit 33 wie du in deinem Video. Gruß Matthias
Wieviele Schichten Graphit hast du benutzt? Und hast du es aufgesprüht , oder aufgepinselt? Ich habe ziemlich viel mit dem Sprühen davon verschwendet. Gruß!
Ja, das ist richtig! 80% gehen daneben. Zwei Lagen Spray-Graphit-Lack denke ich mussten reichen. Den Rest machen die zwei feinen Drähtchen. Ebenfalls Gruß!
Hi ! It is a highly flexible cable, 4 cores and shielded. A link to this. Its www.buerklin.com/de/miniatur-steuerleitung-hoechstflexibel-geschirmt/p/92f704
I wana build this project for this winter, Im am not electronisc i have onli basic knolege but i manege to make it. i fount you project most easeiest to build duo to video very good. you posible send to me the part list and schematics. thx in advanced. mail: neuronix27@gmail.com
Believe it or not, I do not have a parts list. I took the PCB and filled it with the parts I had by myself. All missing parts I ordered in the Internet. On the top of the PCB is the component plan, these are the parts you need. There are also the values of the parts. The PCB I bought at www.silverdog.co.uk/, I thought it was about 8 pounds. The construction guide of "Hobbielektronika TGSL 101" was for me the best. Before you begin to build, read them exactly. Work carefully, check each component, and when you turn on the first time limit the current to 50mA. Good luck!
Olá Sr. Epae, eu não conseguia entender como você fez o escudo, em que ponto você usou a pintura grafite, você poderia explicar melhor como fazê-lo? Eu estou terminando meu tgsl, a versão que eu estou fazendo é o que contém cd4024 sem ser o TGSL-EDU. Obrigado antecipadamente e trabalho bonito, parabéns.
Hi Rani !!! Thanks for your assessment. At the beginning is the finished coil. Then I armored them with epoxy. Of course, the epoxy also insulates the wires of the coil. The graphite lacquer layer is sprayed directly on the coil, and not inside the housing! So the shield is located directly on the coil. The thin bare wires ensure an intensive contact with the gerphite layer. The coil thus has a similarity with a shielded cable. It was important to me that a metal shield dampens a metal detector. Graphite does not do this! I hope I could help you.
Yes I build a CC coil for my IDX project. There is a good building instruction "Building an IDX Concentric Coplaner coil". A video about this in the autumn, ..... have no time in summer.
I wana build tgsl or idx. wath do you recomand for more depth for coins small objects i have an PI for relics but i think to get something to descriminate feros from nonferos here in romania we have a lot of trash in forests. thx
Howdy, all the way from West Texas USA 79563...My Sincere and Humble Thank You Sir...Considering this video post was made seven years ago, I'm wondering just how many advancements you have made since then ?....Your techniques are well above and beyond anything I've ever seen...Especially all Safety concerns, which should always come First...Again Thank You for all your Efforts...FSH2
Hi there! Can you give me the size of your vacuum table? I want to make one because any other methods for building coil case miserably failed for my homemade idx pro!! Thanks lot!!
The outer dimensions are 40 x 40 centimeters. In the middle area are still small spacers. The wood strip around is 5 millimeters thick. A seal is required above. In the film you can see the bluish felt strip. Good luck!!!
OI, PODE INFORMAR ONDE CONECTAR FIO DA BOBINA NO TX E RX DO IGSL SASCHO S, 2 TOM ? INICIO ENRROLAMENTO TX E RX NA PLACA PCB ? CONECAO INICIO ENRROLAMENTO NA PLACA ? E FIM ENRROLAMENTO NA PLACA ?
I can't stop watching your video tutorial. It's fantastic. I'm reading all the information about this design. I finished my first metal detector yesterday. It's based on the krot2 circuit and for the moment I'm only testing the analog part. I made the coils but they are my first try and I'm too far from the nuling point of the coils. Now i'm making a mold to make a super tight coils. The screw adjusting design is so clever and I want to incorporate your idea in my search coil. Can you upload more videos using your detector? Thanks. Diego
Hello Diego. I am pleased by your interest. Unfortunately, I do not have time for my hobby now. (House building) I plan my next video in the spring. The krot2 circuit was not known to me, it's very interesting with the ATXmega 32 and the LCD display. I keep the fingers crossed, that everything works at your project.
Hello again EPAE. NoW after 3 months of work, design and building I'm near to finish my detector tgsl. Thanks to the inspiration that your video gave to me. (Thanks) Now I'm waiting for the epoxy to secure the coils inside the mold. I have shielded the coils with copper foil, but I don't know If it's good idea to give a layer of graphite paint to the plastic case, and if it is, how to make and were to make the gaps to avoid loops? That's the last step to finish the most sensitive part of the detector and because you only have one try i'm afraid of it. Thanks. Have nice day
DHobbies Hi How did you make the electric chips,,,, I didn’t follow up in the video!!! May you plz refer me to some videos if any Thanks a lot Urs Morad
Sehr, sehr gute Arbeit ! Die abstimmbare Spule ist eine sehr gute Idee. Das drängt mich ja gerade dazu, es selbst zu versuchen. Ich habe schon einmal ein Video gefunden über den TGSL, kann ich davon ausgehen, das es diesen irgendwo als Bausatz gibt ? Das Löten beherrsche ich recht gut, das wickeln und abstimmen passt ganz genau in mein Schema (Amateurfunk). Das Ätzen einer Platine beherrsche ich hingegen nicht. Nochmals, Ihre Arbeit gefällt mir sehr sehr gut ! Daumen hoch.
Danke Sascha! Es gibt fertige Platinen für den TGSL und auch IGSL bei „ Silverdog“. Für einen Nachbau gibt es eine Bauanleitung unter „Hobbielektronika TGSL 101" . Der IGSL ist eindeutig besser, aber auch aufwändiger. Viel Glück!
EPAE EPAE I have good offer to you pls contact me at this email alwadakfze@gmail.com or give me your contact detail then I will contact you. We are interested in your detctor
Hi Robert! The old Fisher Pro is still a good choice. I can't sell my detector, he is too important to me. The depth is not that important to me, the historical artefacts are here in a maximum of 40 cm. The identification of the metals is very important to me. It's a different situation than yours. Maybe you should inform you by people ho looking for meteorites. These are depths! Greatigs!
hello EPAE , can you tell the name of the schematic ,and where i can search and obtain it , the one that you build in this video i want . Great job ! thanks for sharing with us
Ciao, how do you calibrate and with which instrument, in youtube are many videos but I can't find one video from calibration IGSL TGSL metal detector, please kann you help my thank's
Hi Ignacio! You can find the circuit diagram on the page "Hobbielektronika TGSL 101". This is a complete building instruction, which I also used. You can also buy ready pcb's by " Silverdog". Better than the TGSL is the IGSL. He is also available by" Silverdog".
Absolutely love your work and explanation of how to build this device. Your device seems to be the best out of all the DYI's out there, because you have complete control out of tuning it up. The demonstrations on each step of the build process. The next circuit add on could be depth amplification and make it waterproof. This way you can place the coil in water in small streams or lakes. Can your device penetrate rock and detect metal inside? Such as those rocks people hide their keys in as a test? Since silver is normally found inside rocks. I could see you making and selling these and people would buy, because yours looks professionally made. Sometimes things break, so having sections for sale such as a new coil and housing. The circuit board and casing. I remember how easy it was to buy components at a radio shack. Now, parts aren't as easy to get. ECG and HSK used to be the go to for ordering all your parts. What country are you from?
Hello again Epae. Maibe you are busy this days, but I have a question for you. I'm trying to find the answer in the forums but I can't find the correct one. My question is about the phase shift. Originally the phase shift is 20° and that means more or less 4us between the TX and RX (for 14,5kHz) but in your video you have aprox 11us. With my detector I get the best performance with 12us to 14us which is aprox the 20% (not 20°) of delay. So, people are talking about degrees or % of delay. Thanks!!!
Hello, your question pleases me! It is the first time this question is asked! These 20 ° refer to a sinusoid. A quarter sinus curve goes from the zero line up to the maximum, that is 90 °. It can be seen on the oscillograph about a quarter of 90 °, about 22 °. The 11μS gives me my oscillograph. I did not recalculate this. I took this from the construction manual "TGLS 101 - hobbielektronika" page 20 chapter "Advanced Nulling Methods". Look at it, maybe I misunderstood something? In the meantime, experience has shown to me that a little less overlap is better. Interferences are reduced. Now i adjust my coil about 5 ° overlap. A calculation of frequency, sine wave to time, leads in my opinion to no better results. I'm doing this pragmatically. I know you would have preferred a more specific answer. But........ Greetings!
Amazing production techniques and attention to detail. Even the production of the video was top quality! One of the best videos I've seen.
Thanks, for noticing this!
@@epaeepae8679 dear sir, why not make more videos? you are the best.
Excellent build quality and attention to detail, and well explained also!
the best explanatory video at the end I understood because I never worked my project you are a very good teacher
thanks! EPAE
Vielen Dank für das ausführliche Video!
Спасибо за видео!
wonderful video.....you are professional in all details. I really Enjoy this video
I appreciate it!
سلام .مهندص ببخشید این چه دستگاهی هست اسم این دستگاه چی هست .ممنون موفق باشی
A very impressive piece of work!! I would like to build one however I can't find 0.25 mm wire. Could I use 0.3mm instead? How many turns would I need? Hope you can help me out here.
No había visto su video lo felicito muy completo y muy profesional esa fabricación de ese detector felicidades y bendiciones
Great video! Thanks for sharing your expertise!
Sehr interessantes Video. Dank dafür! Sofern ich das richtig verstehe, könnte ich die Spulenplattform auch aus mit Glasfaser verstärktem Balsaholzkern konstruieren, da ich keinen unmittelbaren Funktionsgewinn im Bezug auf die elektronische Wirkweise der Spulen durch die die Verwendung eines Thermoplasts erkenne. Sehe ich das richtig so? Oder habe ich etwas übersehen?
can i ask where do you get the box ?
What is TGSL technology?,, Pulse Induction,,or Induction Balance?
Hello dear sir. Thank you for your nice video. Can you tell me size of your coil? thank you
excelent constructions .Bravo and again Bravo. i have no words to say you are teacher my frend greatings from thassaloniki. Greece.
Σας ευχαριστώ, χαιρετισμούς για τη Θεσσαλονίκη.
Hello..Does the Admiral device detect natural gold nuggets?
Hello!I have a question about the simulation of this schematic.I am using Orcad 9.2 and i have problems with block 13 and 12.I don t know why my audio amplifier doesn t do the work and in think the main problem coud be the output of the 12 block.Can you help me?Or give me an idea of what can be the problem?Or can you show me what should be the output when it detects a metal?
Just finished the Barracuda, Have a Surf kit waiting for the Some Day. TGSL is on the bucket list but mine will be modded to run at 25Khz for small gold. Good Video. Thank You.
I am building at the moment a CC coil because I am looking for artifacts. You are probably looking for minerals, so the 25Khz. My respect, good luck for the project!
Very impressive. What’s the best object you have found using this detector?
any chance of posting a copy of your layout? Thanks
Do you have this unit for sale yet? I would be interested if the price is cheap enough.
Also does the graphene \ graphite layer help in the detection of gold or hurt the depth. I want to tune it to find only gold at about 1 1/2 feet max.
What if you add more coils with different windings, like 1x + 1.5x + 2x etc ?
Very awesome build sir!!!!
Hello friend I live here in the country Brazil, How to make a coil for metal detector quest x5? I tried to make sticks instead but I couldn't. Thanks
Sir what is the price of tgsl
You are very good teacher I feel I am not good at all about this matter but interesting to listen
very nice work are you sell this designs with measurement in any way ....shiping is cost alot of time and money
Excellent video. I would like to have discovered it before starting my project.
I'm making my coils for the IB metal detector.
I reduced the voltage on the receiving coil by less than 1mVrms @ 10kHz. Why didn't you set the voltage on the receiving coil to a minimum?
Thanks
Why would you want to on purpose use a weak signal for detection?
@@UnitSe7en
Imagine a signal with 1mVpp at the receiver, added with 100mVpp of continuous unbalance between the transmitter and receiver coils.
Now imagine the same signal with 1mVpp at the receiver, added with only 1mVpp of continuous unbalance between the transmitter and receiver coils.
Which condition is the easiest to detect the signal?
minimum signal voltage like 1mv peak t peak will be in certain phase woth reference to the tx signal , then discrimination will not work properly. A combination of phase and lower voltage on RX ends are required for discrimination to work properly, not just a lower voltage , in short it is an "And" function voltage × phase 🙋
Great work! How good is that mini DSO to work with metal detector coils? Is it appropriate?
is it possible 2 metre of underground with wich machine ?
Hab noch eine Frage: Wie hast du die Spulen fixiert bevor du den 2K - Kleber draufgetan hast? Mir fallen die Windungen auseinander und die Schnur bekomme ich nur schwer wieder runter.
Hallo Mathias!
Fixiert habe ich die noch lose Spule zunächst nicht mit einer Schnur (Faden), sondern mit einem 4mm breiten Streifen Klebeband sehr steil gewickelt. Achte darauf, dass die Spule möglichst kompakt bleibt. Dannanch kam ein 5 min. Epoxi darüber. Nicht zuviel ! Als es es noch nicht total fest war, zog ich das Klebeband wieder ab, und strich noch eine weitere Lage Epoxi drüber.
Also Geduld und viel Glück! EPAE
Very cool information. Thank you for sharing.
what happens if you do 3 rings inside each other and 3 on top of the existing ones... so you have a total of 9 coils in a electrical heater pattern? how deep could that go? and how much energy?
this is one of the greatest video ever.
What kind of plastic do you use to make the base for the coil?
Hi Mr. Epae. For insulation of the shell you use something? garsphite is ok from description?
Hi Patriche!
The shell itself is not shielded with something. On the contrary, I have roughened the inner surface slightly , for a good connection with the resin. Also for thermoforming I didnt use anything. Graphite is only in the shielding of the coils.
Witam podoba mi się Twoja praca wykonana profesjonalnie z wielka starannością wielki ukłon w Twoim kierunku Pozdrawiam z Polski
Dzięki Polsce! Honoruje mnie!
Hello there justupper PCB ready mount I can we There is my electronic understanding coil I can thanks
Schematics tgsl 2 tones? Sascho S .?
Das hast du richtig gut gemacht, Danke für die Präsentation.
Danke
The wire that you used to contact the graphite varnish can spoil the performance of the device, as it forms a closed loop next to the winding. The fact that it goes at an angle at every point does not really matter, because integrally it forms a single conductor. However, it is apparently impossible to completely abandon shielding, therefore, the ends of the wire should be connected to the ends of a symmetrical resistive voltage divider, the resistance of which should be selected based on the balance of noise immunity and signal attenuation. And already the middle point of this voltage divider can be connected to the common wire of the device.
I have admiral..but just 40 cm for target above 20cm metal I don't know how can i fixt
What is the wire type and size of each D coil and what is the wire wrapped over the graphite tape? Awesome job mate. I want to build one for my Garrett AT Gold. I notice that Garrett does something very similar, the use 32ga on one side and 25ga on the other side. All magnetic wire and graphite powder mixed with epoxy as a coating over each coil.
I don't think that shielding materials will effect the depth in a direct way, maybe when you shielded the coil with a certain material, that would effect the inductance some how, that's why you get a greater depth with the graphite shielded search head.
Thank you for this rewarding video, I learned some technics from you .
Good luck 🙂
Hello, greetings from Mexico, The video is very, very good, it explains everything very well.
my question is the following, how to know the frequency. for example for gold, silver, and how to make a coil for a greater depth.
How much the cost for that one sir?
Over my head... but cool to watch. Very skillful. Must be an electrical engineer? Retired?
I'd be happy just to make the simplest/basic bare-bones metal detector. Just turn it on and it works.
Super Anleitung! Kann man nach der Graphitshicht noch eine Schicht über den Draht sprühen? Welchen Draht hast du für die Abschirmung verwendet?
Hallo Mathias
Über die Anschlussdrähte habe ich dünne Schutzschläuche gezogen, Graphitlack drüber gesprayt und die feinen Abschirmdrähtchen herumgewickelt.
In der Sequenz 3:20 kannst Du es erkennen.
Grüße EPAE
Aus welchem Material sind diese Abschirmdrähtchen? Kupfer versilbert? Oder geht reines CU auch?
Gruß Matthias
Sie sind Kupfer verzinnt. Es sind einfach Einzeldrähte aus einer dünnen Litze. Egal was du nimmst, es hat die Funktion einen guten Kontakt mit der Graphitoberfläche herzustellen. Die Graphitschicht baut Zentimeter für Zentimeter einen immer höheren Widerstand auf. Einmal herum um die Spule währen das dann einige Megaohm. Das ist dann überhaupt keine Abschirmung mehr. Die zwei dünnen Drähtchen kreuzweise gewickelt sind schon gut!
Wichtig ist, das Graphit keine metallischen Eigenschaften hat. Die Spule soll ja auf Metalle reagieren. Also nimmt jedes Metall der Spule ihre Sensibilität!
Danke!
Cool. Like ..... A question how many ohms on the rx and tx? Thanks for listening.
That is a meaningless question. Inductance is what you want to know.
do you have the wiring diagram of the dual coil with the 4 wires connect to the unit?
Wow this is amazing
Great work! I just started to make my own but i have a problem with the correct Copper cable. I can't find 0.25 mm, how can i calculate the number of turns with 0.30 mm or 0.40 mm. Thx.
Hello first.
The best coil calculator is the " LCFR" (Lcfr.zip, 4KB), I think.
Not to spite of that, the 0.25mm is best suited. I did not get him too, so i used the 0.28 mm.
Important is the inductance and the self-resonance of your coil. 14.5kHz and Tx 6.0mH, Rx 6.5 mH.
Greatigs!
@@epaeepae8679 Sorry. I can't download lcfr.zip. Can you send me? reynelcm@gmail.com. Great work!
I'm looking for something that goes much deeper (3+m) for target size 1sqm.
Is this possible by just building bigger coils?
Do you have a data sheet for detector device components 20 meters away from gold or blanks
Thank you teacher. Mother board very hard makeing.
nice video,, good job! is there any possibility to use these formula to build detector that can capture signal for up to 5 metre. Thanks
من اين نحصل على الجهاز المستخدم في علبة التحكم
Where can I find the schematic to make my own boards?
Thanks for sharing, I like to know more about this, is work more than 3 fit detecter range if please let me know. Thank you
HI Boi!
I think more is not achievable with the TGSL. 3 feet are not reachable. I 'm working on an automatic 'nulling' of the coil. A perfect 'nulling' is the key to good results.
My Boi y
Ich habe jetzt 100k Ohm an der am weitesten entfernten Stelle , und 14 k Ohm am Anfang. Ist das ausreichend? Die Induktivität ist von 6,02 auf 6,04 gestiegen.
Mit der anderen Spule habe ich überall 4kOhm. Da habe ich den Draht etwas fester gespannt. Meinst du ich kann die mit 100k Ohm so lassen?
Hi !
Du sprichst hoffentlich von der Abschirmung!
Die beiden blanken Drähte wickelte ich ja um die ganze Spule (siehe Bild 3:00 Minute). Der Widerstand ist dann überall zwangsläufig so gut wie 0.
Selbstverständlich darf es zwischen der Abschirmung und der Spule keinen Kontakt geben. Die Spule muss wirklich gut isoliert sein. Also keinerlei Widerstand!
Die Induktivität der Rx Spule beträgt 6,5 mH, die der Tx 6,0 mH. Eine Abweichung von 0.1 mH ist meiner Erfahrung nach unwichtig.
Wirklich wichtig ist die "Nullung", aber dies hast du ja im Video gesehen.
Die Ohm Zahl des Spulen-Widerstands stimmte bei mir noch nie, da dies von der Drahtstärke abhängt.
Tx und Rx ca. 20 Ohm, nicht Kilo-Ohm.
Hoffentlich entstand jetzt keine Verwirrung.
Grüße!
Ja , ich meinte die Abschirmung. Ich habe bereits eine fertige Spule gemacht vor etwa einem Jahr. Meine Abweichung ist nur 0,02 mH pro Spule. Ich hatte meine Kupferdrähte, so wie du, herumgewickelt um den Widerstand der Graphitabschirmung zu reduzieren und da hatte ich leider noch 100 k Ohm Widerstand an der am weitesten entfernten Stelle.
Ich habe dann mit einem Stück Toilettenpapier die Grapitschicht poliert und dann hatte ich ca 15 k Ohm ohne Draht. Ich muss den Draht noch herumwickeln. So wie ich das bei mir sehe schaffe ich nicht unter 3-5 k Ohm.
Ich benutze auch Graphit 33 wie du in deinem Video.
Gruß Matthias
Wieviele Schichten Graphit hast du benutzt? Und hast du es aufgesprüht , oder aufgepinselt? Ich habe ziemlich viel mit dem Sprühen davon verschwendet.
Gruß!
Ja, das ist richtig! 80% gehen daneben. Zwei Lagen Spray-Graphit-Lack denke ich mussten reichen. Den Rest machen die zwei feinen Drähtchen.
Ebenfalls Gruß!
Hi. what type of cable you use from coil to circuit? usb? i see no shild on it. thx
Hi !
It is a highly flexible cable, 4 cores and shielded. A link to this.
Its www.buerklin.com/de/miniatur-steuerleitung-hoechstflexibel-geschirmt/p/92f704
thx very useful
I wana build this project for this winter, Im am not electronisc i have onli basic knolege but i manege to make it. i fount you project most easeiest to build duo to video very good. you posible send to me the part list and schematics. thx in advanced. mail: neuronix27@gmail.com
Believe it or not, I do not have a parts list. I took the PCB and filled it with the parts I had by myself.
All missing parts I ordered in the Internet.
On the top of the PCB is the component plan, these are the parts you need. There are also the values of the parts. The PCB I bought at www.silverdog.co.uk/, I thought it was about 8 pounds.
The construction guide of "Hobbielektronika TGSL 101" was for me the best. Before you begin to build, read them exactly. Work carefully, check each component, and when you turn on the first time limit the current to 50mA. Good luck!
thx
Verry verry Good TGSL Sir. i want Built It if i may
hi,,is it possible to purchase a finished item,that is control box and coil please,,,rgds
Olá Sr. Epae, eu não conseguia entender como você fez o escudo, em que ponto você usou a pintura grafite, você poderia explicar melhor como fazê-lo? Eu estou terminando meu tgsl, a versão que eu estou fazendo é o que contém cd4024 sem ser o TGSL-EDU. Obrigado antecipadamente e trabalho bonito, parabéns.
Hi Rani !!!
Thanks for your assessment.
At the beginning is the finished coil. Then I armored them with epoxy. Of course, the epoxy also insulates the wires of the coil. The graphite lacquer layer is sprayed directly on the coil, and not inside the housing! So the shield is located directly on the coil. The thin bare wires ensure an intensive contact with the gerphite layer. The coil thus has a similarity with a shielded cable.
It was important to me that a metal shield dampens a metal detector. Graphite does not do this!
I hope I could help you.
Obrigado Sr. Epae, eu entendi e vai tentar fazer o mesmo. Bom trabalho.
Hi. Could you tell me please wath is the diametre of your coil? this is the best homemade built i ever seen. thx nice job
The outer diameter is 255 mm. I used a very good building instruction. You can find them under "TGSL 101".
Thanks very useful.
do you think of building a concentric coil?
Yes I build a CC coil for my IDX project. There is a good building instruction "Building an IDX Concentric Coplaner coil". A video about this in the autumn, ..... have no time in summer.
I wana build tgsl or idx. wath do you recomand for more depth for coins small objects i have an PI for relics but i think to get something to descriminate feros from nonferos here in romania we have a lot of trash in forests. thx
Howdy, all the way from West Texas USA 79563...My Sincere and Humble Thank You Sir...Considering this video post was made seven years ago, I'm wondering just how many advancements you have made since then ?....Your techniques are well above and beyond anything I've ever seen...Especially all Safety concerns, which should always come First...Again Thank You for all your Efforts...FSH2
10:24 Wie heißt dieses Objekt?
Can you help me how can i increase ditection depth
I don't understand if how many rounds the coper wire. .& also how many lent. . .of round. . .
It is a double D coil. There is a very good construction manual!
www.hobbielektronika.hu/forum/getfile.php?id=224173
Thanks ❤❤❤
Can you share a complete Diagram and all complete Materials..i love this and ilike build my own Metal detector.thanks
Can i buy one sir??
Hi there! Can you give me the size of your vacuum table? I want to make one because any other methods for building coil case miserably failed for my homemade idx pro!!
Thanks lot!!
The outer dimensions are 40 x 40 centimeters. In the middle area are still small spacers. The wood strip around is 5 millimeters thick. A seal is required above. In the film you can see the bluish felt strip. Good luck!!!
Thank you very much!!!
can U please give me ingredents of thes progect , as a list
how much metres thes machine gets ?
thnx so much
www.hobbielektronika.hu/forum/getfile.php?id=224173
This is an excellent construction manual, he answers every question.
Fantastic video. Highly skilled. More details on a link would be nice if possible.
Your enthusiasm honors me, thank you.
Please search for links below in the comments. I think they get every question answered. Best regards!
Can you build a 52khz?
Sir please give full project diagram pcb and coil
muy buen video tendrás el circuito para compartir
OI, PODE INFORMAR ONDE CONECTAR FIO DA BOBINA NO TX E RX DO IGSL SASCHO S, 2 TOM ? INICIO ENRROLAMENTO TX E RX NA PLACA PCB ? CONECAO INICIO ENRROLAMENTO NA PLACA ? E FIM ENRROLAMENTO NA PLACA ?
Very professional. Kits, please? Never hurts to ask. Call it a compliment. ;)
Can i buy?
I can't stop watching your video tutorial. It's fantastic. I'm reading all the information about this design. I finished my first metal detector yesterday. It's based on the krot2 circuit and for the moment I'm only testing the analog part. I made the coils but they are my first try and I'm too far from the nuling point of the coils. Now i'm making a mold to make a super tight coils. The screw adjusting design is so clever and I want to incorporate your idea in my search coil. Can you upload more videos using your detector? Thanks. Diego
Hello Diego.
I am pleased by your interest.
Unfortunately, I do not have time for my hobby now. (House building) I plan my next video in the spring.
The krot2 circuit was not known to me, it's very interesting with the ATXmega 32 and the LCD display.
I keep the fingers crossed, that everything works at your project.
EPAE EPAE
Hello again EPAE. NoW after 3 months of work, design and building I'm near to finish my detector tgsl. Thanks to the inspiration that your video gave to me. (Thanks) Now I'm waiting for the epoxy to secure the coils inside the mold. I have shielded the coils with copper foil, but I don't know If it's good idea to give a layer of graphite paint to the plastic case, and if it is, how to make and were to make the gaps to avoid loops? That's the last step to finish the most sensitive part of the detector and because you only have one try i'm afraid of it. Thanks. Have nice day
DHobbies
Hi
How did you make the electric chips,,,, I didn’t follow up in the video!!!
May you plz refer me to some videos if any
Thanks a lot
Urs Morad
Hi i need this metal detector file can you give me that?
How turn coil wire round
The Fisher is a "660 Moter-Lode (VLF)"...I'm very interested in depth...10" to 24"++...
Sehr, sehr gute Arbeit ! Die abstimmbare Spule ist eine sehr gute Idee. Das drängt mich ja gerade dazu, es selbst zu versuchen. Ich habe schon einmal ein Video gefunden über den TGSL, kann ich davon ausgehen, das es diesen irgendwo als Bausatz gibt ? Das Löten beherrsche ich recht gut, das wickeln und abstimmen passt ganz genau in mein Schema (Amateurfunk). Das Ätzen einer Platine beherrsche ich hingegen nicht. Nochmals, Ihre Arbeit gefällt mir sehr sehr gut ! Daumen hoch.
Danke Sascha!
Es gibt fertige Platinen für den TGSL und auch IGSL bei „ Silverdog“. Für einen Nachbau gibt es eine Bauanleitung unter „Hobbielektronika TGSL 101" . Der IGSL ist eindeutig besser, aber auch aufwändiger. Viel Glück!
EPAE EPAE I have good offer to you pls contact me at this email alwadakfze@gmail.com or give me your contact detail then I will contact you. We are interested in your detctor
will you sell?
that is awesome!
Dude, this one can penetrate several meters underground!
And a coil that can be used to find nuggets the size of number #8 lead shot at 3" or less...
Hi Robert!
The old Fisher Pro is still a good choice.
I can't sell my detector, he is too important to me.
The depth is not that important to me, the historical artefacts are here in a maximum of 40 cm.
The identification of the metals is very important to me.
It's a different situation than yours.
Maybe you should inform you by people ho looking for meteorites.
These are depths!
Greatigs!
Yah machine kitne ki hai please reply me from Pakistan
Apna WhatsApp number Ya Koi Kisi bhi chij ka number please Dena Mujhe main aapse contact karna chahta hun
Amigo voce vende esse aparelho
hello EPAE , can you tell the name of the schematic ,and where i can search and obtain it , the one that you build in this video i want . Great job ! thanks for sharing with us
ttps://www.hobbielektronika.hu/forum/getfile.php?id=224173
This is my construction instruction.
Greatings!
10x a lot . Indeed i need an osciloscope with range over 15khz i guess to calibrate the coils
Well done very good job 👍
do you sell this in europe?
sorry. I just built this for my own purposes.
Hello, tour project IS really good can you send a schematic or if you want make video about it please, thanks
www.hobbielektronika.hu/forum/getfile.php?id=224173
This is an excellent construction manual, he answers every question
Ciao, how do you calibrate and with which instrument, in youtube are many videos but I can't find one video from calibration IGSL TGSL metal detector, please kann you help my thank's
Just like my former senior engineer
Nice channel, I found very interesting. Could you please share the circuit diagram for this your detector? I would love to build a replica.
Hi Ignacio!
You can find the circuit diagram on the page "Hobbielektronika TGSL 101".
This is a complete building instruction, which I also used. You can also buy ready pcb's by " Silverdog". Better than the TGSL is the IGSL. He is also available by" Silverdog".
very well made.
Absolutely love your work and explanation of how to build this device. Your device seems to be the best out of all the DYI's out there, because you have complete control out of tuning it up. The demonstrations on each step of the build process. The next circuit add on could be depth amplification and make it waterproof. This way you can place the coil in water in small streams or lakes. Can your device penetrate rock and detect metal inside? Such as those rocks people hide their keys in as a test? Since silver is normally found inside rocks. I could see you making and selling these and people would buy, because yours looks professionally made. Sometimes things break, so having sections for sale such as a new coil and housing. The circuit board and casing. I remember how easy it was to buy components at a radio shack. Now, parts aren't as easy to get. ECG and HSK used to be the go to for ordering all your parts. What country are you from?
Hello again Epae. Maibe you are busy this days, but I have a question for you. I'm trying to find the answer in the forums but I can't find the correct one. My question is about the phase shift. Originally the phase shift is 20° and that means more or less 4us between the TX and RX (for 14,5kHz) but in your video you have aprox 11us. With my detector I get the best performance with 12us to 14us which is aprox the 20% (not 20°) of delay. So, people are talking about degrees or % of delay. Thanks!!!
Hello, your question pleases me! It is the first time this question is asked!
These 20 ° refer to a sinusoid. A quarter sinus curve goes from the zero line up to the maximum, that is 90 °. It can be seen on the oscillograph about a quarter of 90 °, about 22 °. The 11μS gives me my oscillograph. I did not recalculate this.
I took this from the construction manual "TGLS 101 - hobbielektronika" page 20 chapter "Advanced Nulling Methods". Look at it, maybe I misunderstood something?
In the meantime, experience has shown to me that a little less overlap is better. Interferences are reduced.
Now i adjust my coil about 5 ° overlap.
A calculation of frequency, sine wave to time, leads in my opinion to no better results. I'm doing this pragmatically.
I know you would have preferred a more specific answer.
But........
Greetings!
THIS DETECTOR Impulse induction ?? how to constructur disque 1m Fois 1m coil rotate ????