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
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.
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!
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 🙂
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, 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.
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.
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 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.
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?
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.
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.
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 🙋
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?
I liked your video. Very simple and right to the point. I Loved the construction methods from beginning to end, all homemade projects. Ve forry Nice. Maybe you should make a kit and sell it, I would most likely buy one. Thanks for your video. I subscribed and gave thumbs up. Cheers.
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.
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?
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!
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".
I'm still looking at vaccum forming as a massive advancement in my current design process. At the moment I'm still building housings out of sheet material. XD
Naw boo, they both have their own rolls to play. Vacuum forming is much better for manufacturing robust thing quickly, where 3D printing is much better at prototyping and or producing small and complex structures. The real mind bender is when you 3D print a vacuum mold. Oh ya, and I also got a fun fact: there's only 20 years between their inventions... 64 for vacuum forming and 84 for 3D printing. That's right, 3D printing came out 12 years after the last time we went to the moon.
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
EPAE : I thank you from the bottom of my heart, and I wish you continued health and wellness, and may God grant you success in what He loves and is pleased with, and forward
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! So many of us build it follow TGSL101 but we can't get target further than 20 cm how you make it? Did you use all the parts same as original parts?
Hello there. Yes, I use the same parts as the original. In addition, however, is still a 2 tone board. To find: "TGSL metal detector Abstract 2 tones". Important is the interplay of several components. The coil, in the way like I show it in the video, accurate 'nulling', a matter of a hair width and a metal-free shielding! The 2ton bord also increases the sensitivity! (Sometimes a bit too much!) Coins like 1 € should be reachable with 25cm. I wish you luck !!!
Yes, because the LM308 was not available quickly. Technically there is no difference. Later I exchanged him. The OP07 is a tiny, tiny bit more cleaner I guess. The sensitivity can be increased considerably with the '2 ton bord'. There is a transistor BC337. I used the BC337-40, this gave the best results.
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!!!
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
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.
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.
the best explanatory video at the end I understood because I never worked my project you are a very good teacher
thanks! EPAE
No había visto su video lo felicito muy completo y muy profesional esa fabricación de ese detector felicidades y bendiciones
Excellent build quality and attention to detail, and well explained also!
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.
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!
Great video! Thanks for sharing your expertise!
Very awesome build sir!!!!
You are a very good " teacher" , the work is top of the top....
Very cool information. Thank you for sharing.
Das hast du richtig gut gemacht, Danke für die Präsentation.
Danke
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
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.
Wow this is amazing
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!
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
What if you add more coils with different windings, like 1x + 1.5x + 2x etc ?
Well done very good job 👍
that is awesome!
Very nice, your a clever guy. great video :)
I appretiate it. Thx
this is one of the greatest video ever.
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 🙂
....great work!!!
Thx and ahappy new year.
....and you a happy new year!
Thank you good and wonderful work
THX you, too.
@@epaeepae8679 can I have your contact email
vielen dank, sehr schön ein Video
You are very good teacher I feel I am not good at all about this matter but interesting to listen
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, 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.
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'm looking for something that goes much deeper (3+m) for target size 1sqm.
Is this possible by just building bigger coils?
Great job
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.
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!
Nice channel and good work :D
Thank you!
Excellent DIY build. Can we see the circuit details, please?
You can find the circuit diagram on the page "Hobbielektronika TGSL 101".
Link of *. Pdf document
www.hobbielektronika.hu/forum/getfile.php?id=220348
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.
Great work! How good is that mini DSO to work with metal detector coils? Is it appropriate?
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?
Great work EPAE :)
Thanks mate!
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.
Sucess may Friends 👍🏼👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻
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
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.
I like your cat
Miiiau!
Very impressive. What’s the best object you have found using this detector?
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 🙋
do you have the wiring diagram of the dual coil with the 4 wires connect to the unit?
Do you have a data sheet for detector device components 20 meters away from gold or blanks
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?
14:53 Smart to have a backup ready to go :)
Very professional. Kits, please? Never hurts to ask. Call it a compliment. ;)
What kind of plastic do you use to make the base for the coil?
Like 922. Very good. I'm Brazilian.
And a coil that can be used to find nuggets the size of number #8 lead shot at 3" or less....
I liked your video. Very simple and right to the point. I Loved the construction methods from beginning to end, all homemade projects. Ve forry Nice. Maybe you should make a kit and sell it, I would most likely buy one. Thanks for your video. I subscribed and gave thumbs up. Cheers.
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.
Where can I find the schematic to make my own boards?
por favor podría pasar ese exelente trabajo en castellano.
desde Argentina.
MaximilianoMachiavello.gracias.
Excelente
Gracias y un feliz año nuevo.
Ola tudo bem vc consegue o projeto para que eu possa fazer com o desenho da placa tudo. meu imail sandroharms@live.com
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 like
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
Best vid ever. Msg
You overdo. Thx
I never owned a MD hence know nothing but plan to make one and downloaded almost every DIY but yours is best and organized.
cool
Thx
i liked thanks
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?
The Fisher is a "660 Moter-Lode (VLF)"...I'm very interested in depth...10" to 24"++...
Waaaaw!!!!!!!
Dude, this one can penetrate several meters underground!
Recpect from Türkiye!
Love u bro plz deep reng metal detector ciruit nd part name i make home plz
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!
hi,,is it possible to purchase a finished item,that is control box and coil please,,,rgds
Can you share a complete Diagram and all complete Materials..i love this and ilike build my own Metal detector.thanks
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".
Oh wow, it's what people did before 3D printing was a thing :D
I'm still looking at vaccum forming as a massive advancement in my current design process.
At the moment I'm still building housings out of sheet material. XD
Naw boo, they both have their own rolls to play. Vacuum forming is much better for manufacturing robust thing quickly, where 3D printing is much better at prototyping and or producing small and complex structures.
The real mind bender is when you 3D print a vacuum mold.
Oh ya, and I also got a fun fact: there's only 20 years between their inventions... 64 for vacuum forming and 84 for 3D printing. That's right, 3D printing came out 12 years after the last time we went to the moon.
vary naice
any chance of posting a copy of your layout? Thanks
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
this is so cool. where on earth does one even begin to learn this stuff. :'D
muy buen video tendrás el circuito para compartir
Hello..Does the Admiral device detect natural gold nuggets?
EPAE : I thank you from the bottom of my heart, and I wish you continued health and wellness, and may God grant you success in what He loves and is pleased with, and forward
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!
Just like my former senior engineer
THIS DETECTOR Impulse induction ?? how to constructur disque 1m Fois 1m coil rotate ????
Bagus
very good i made the TGSL IGSL, a 4 channel variant of your metal detector, i have a metal detecting channel too, bye
as I'm sure
Amazing! So many of us build it follow TGSL101 but we can't get target further than 20 cm how you make it? Did you use all the parts same as original parts?
Hello there.
Yes, I use the same parts as the original. In addition, however, is still a 2 tone board. To find: "TGSL metal detector Abstract 2 tones".
Important is the interplay of several components.
The coil, in the way like I show it in the video, accurate 'nulling', a matter of a hair width and a metal-free shielding!
The 2ton bord also increases the sensitivity! (Sometimes a bit too much!)
Coins like 1 € should be reachable with 25cm.
I wish you luck !!!
EPAE EPAE In the clip you said you changed lm308 to Op07 is that right?
Yes, because the LM308 was not available quickly. Technically there is no difference. Later I exchanged him. The OP07 is a tiny, tiny bit more cleaner I guess.
The sensitivity can be increased considerably with the '2 ton bord'. There is a transistor BC337. I used the BC337-40, this gave the best results.
Hello dear sir. Thank you for your nice video. Can you tell me size of your coil? thank you
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!!!
Sir great video and informative but ur voice sound very low
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
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
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.
Can you help me how can i increase ditection depth