Hi, this works! But with small changes. I have a need to tell you this. A few months ago, I struggled with this (then I didn't know how to read electrical schematics) and I didn't manage to put it together. But now, last night, I made it! It is very functional and useful! But how did I do it? Replace the 2.2uF capacitors with 1uF, also very important, replace the resistor around 47k with 4.7k, instead of connecting the minus to pin 1, connect it to the minus of the capacitor that goes from pin 3. This way, this works just fine. The buzzer buzzes, when you get close to the metal it changes the sound. Use a 9V battery to make it work nicely. I did not use an excessively long wire, if you use a very long one, a few meters, then you will have a stronger effect. It also works with a diameter of 10 cm, but I put 5 cm (I used the same length of wire). I put it through the rod and that's it. I also added an LED, connected in parallel with the buzzer so that I know when it is on, although the buzzer buzzes, for the sake of aesthetics, I like it. Greetings and cheers! I am available for additional questions! Update: Instead of using a resistor, use a potentiometer, I used a 100k. It is very easy and precise to set the diode and the buzzer to react only if the metal is approached. Greeting!
Hi Guitar A, I am inquisitive to make this circuit but won't be able to. Can you please make a video explaining how to make it and how it works, plus a circuit diagram so I can make one? Could you upload it on your RUclips channel or send e to my email, please? Thanks.
@@tahamuzaffar007I'm sorry, I don't answer because every comment would be too long, and YT won't post it, doesn't accept it... I explained the most important things above... If you don't know something, just go to Google and search, thanks for understanding!
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Hi, this works! But with small changes. I have a need to tell you this. A few months ago, I struggled with this (then I didn't know how to read electrical schematics) and I didn't manage to put it together. But now, last night, I made it! It is very functional and useful! But how did I do it? Replace the 2.2uF capacitors with 1uF, also very important, replace the resistor around 47k with 4.7k, instead of connecting the minus to pin 1, connect it to the minus of the capacitor that goes from pin 3. This way, this works just fine. The buzzer buzzes, when you get close to the metal it changes the sound. Use a 9V battery to make it work nicely. I did not use an excessively long wire, if you use a very long one, a few meters, then you will have a stronger effect. It also works with a diameter of 10 cm, but I put 5 cm (I used the same length of wire). I put it through the rod and that's it. I also added an LED, connected in parallel with the buzzer so that I know when it is on, although the buzzer buzzes, for the sake of aesthetics, I like it. Greetings and cheers! I am available for additional questions!
Update: Instead of using a resistor, use a potentiometer, I used a 100k. It is very easy and precise to set the diode and the buzzer to react only if the metal is approached. Greeting!
Hi Guitar A, I am inquisitive to make this circuit but won't be able to. Can you please make a video explaining how to make it and how it works, plus a circuit diagram so I can make one? Could you upload it on your RUclips channel or send e to my email, please? Thanks.
I want to build it but need the coil to fit inside of a toothbrush case
@@tahamuzaffar007I'm sorry, I don't answer because every comment would be too long, and YT won't post it, doesn't accept it... I explained the most important things above... If you don't know something, just go to Google and search, thanks for understanding!
Plzz explain the no of turns used
can you please send me video of your project where you changed on this circuit?
How many metres of coil do you need for the inductor
Will it be fine to replace the speaker with a buzzer instead? Will it generate sound when metal is detected? Pls reply
Can anyone explain me how resonance frequency with RLC instead R1 between Vcc and Dis and R2 between dis and th pins is calculated??
I need the coil to fit inside of a toothbrush case.
Can I make the coil smaller?
No
Ile voltów mają te wszystkie kondensatory?
Не менее 16
Any idea that i can make it off the sound when there’s no metal
Plz coz this is my graduation project!
Thx helped a lot
how can i make it off the sound when there is no metal
check my second metal detector video, search in my channel videos
so im guessing this is why metal detectors have a squelch knob
BOLKR BTANA MNA HAI KYA SIR
А на выходе 555серии поставить упчз и на выход унч2822 вот тогда будет классный детектор
When touch buzzered
Добавьте унч 2822и Поставь гр 05вт и батарею крона на 9вольт или 12волт и тогда ??????
Plz send me circuit diagram
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Why?
Does 150 turns enough could you mention the meters plz