@@joeythefoxxo I speak from personal experience. I'm not sure if the glue actually gives off cyanide during heating, but the fumes for sure are aggressive on the airways.
ajaykatal4026 It's a BC547. The circuit is called a Darlington configuration. One transistor amplifies the previous, so the gain gets higher with each transistor. 5 volts is connected to the collector of both transistors. The negative from the power source is connected to the cathode (-) of the LED. The anode (+) of the LED is connected to the emitter of transistor 2. The electromagnetic field produced by the oscillating AC voltage is picked up by the antenna connected to the base of transistor 1. This saturates the transistor and allows current to flow to the emitter. (base to collector ratio = current gain) The emitter is connected to the base of transistor 2 and the process is repeated for more gain (amplification.) When AC voltage is near enough, the transistors "switch on" to power the LED. This is also how an audio amplifier works, except an audio signal replaces the electromagnetic field from the AC voltage. ALWAYS insulate the antenna in case it comes into contact with the AC voltage.
Electrical current is like water that it flows too its lowest point of ground and as it flows; it gives off radio waves that can be detected or something some frigging genius spy or whatever said in a TV show or something 🤣😂🤣😂
@@BeetleBuns who shit in your soup bruh. Imagine getting mad at people for exploring a field they might not know much about. I hope you never have kids cause you’d be the least fun parent.
If you're curious what's going on in the circuit, it looks like a darlington pair from BJTs and the coil drives the base current when a field is present. You should include a current limiting resistor for the LED and transistors because there is no "built in" resistance. Just a forward voltage for the LED and you're supplying that via the power bank but it will burnout eventually without limiting the amount of current through it.
I don't understand, the Power bank provides 5 volt, the coil provides next to nothing, it really cant be a lot. you have 5 volt LEDs, so it should never be a problem? they should last their expected life cycle.
@@j4ck3t The coil is providing the base current to a darlington pair of transistors. If you look up the current gain of a darlington pair, 10k to 50k, you'll understand why such a small amount of current in from the coil is capable of being used like a switch in this application. What dictates the current through the LED would have been a current limiting resistor in normal applications, but in this application, it's similar to hooking it up to a 5v supply with no current limiter. You may get by for a while, but it's a better design practice to make sure it'll work and include a current limiting resistor like half of the comment section recommends for good reason.
@@j4ck3tthere is no need for it to be a 'coil' itself. in this video the coil just acts as one plate of a capacitor. (in reality there is no capacitor here, the conductor of the coil just acts as one) meaning you can just use aluminium foil and insulate it with tape. what happens here is when the coil is brought near AC, small current is produced in the coil as it acts as one plate of a capacitor (a capacitor will allow the passage of AC through it, since it has changing electric field). Although I won't recommend you to repeat, what you saw in the video as there is no detailed explanation.
@@hasanmustafa9717 That's very true. Education is of vital importance at this historical time, more than ever before. Many factors have caused education to become woefully lacking in most countries, especially in the United States. This is simply the result of systemic greed, but the consequences may turn out to be unthinkable tragedy.
@@mannyheffley5481 nothing on the internet is ever too late, but I have since acquired one for about $5 😂 I don't think it was even from Temu either 👌😁🤙 Plus it has a fancy signal generator, which is a key component I don't recall if this video mentioned
Yeah I see so many of these on sale at hardware stores and all of the LED’s are blue and green lol. Some unfortunate person that isn’t educated is gonna take that the wrong way
Electrician chiming in, many circuit testers will have different colored lights for different things, for example blue light is typically used to detect low-voltage (i.e. phone, data, doorbell, etc.) wire, Red indicates a High-voltage wire (i.e. plugs, lights, normal circuits, etc.) and Green is usually a "standby" color, that is always lit until you find a circuit so you know the tool is on and working.
Всем кто не вкурил. Юсб порт с проводами питания, 2 транзистора, и катушка индуктивности. Транзистор это включатель, по центральному контакту если идëт ток, то в зависимости от силы тока и напряжения, он через крайние контакты вход и выход пропускает электричество, чем больше по центральному контакту тока тем больше он пропусксет ток, как выключатель с плавным включением и выключением. Два транзистора спаивают так что один транзистор на центральном контакте имеет катушку индуктивности, она улавливает электромагнитное поле от проводов напряжения, а второй транзистор включает ток из контактов юсб модуля. Катушка индуктивности получает напряжение оно идëт по центральному контакту и включает проход току ток проходит на средний контакт второго транзистора и включает второй провод и получается что лампочка загорается а уровень тока регулируется транзисторами и лампочка горит сильнее чем ближе поднесëш катушку индуктивности к источнику электромагнитного поля.
@@MAKSAVELLO я удивлëн, но я учился на КИПиА и там толково не могли эти вещи объяснить с годами разобравшись я понял суть процесса и принцип действия некоторых электронных элементов, и тут всë не сложнее допустим сантехники, но вот принято считать что это для умников, по сути просто надо понимать как в точности работает каждый из элементов и какие к каким подобрать для того чтоб нужные токи и мощности совпадали. Только много их, мелкие и замерять надо приборами разными.
Lol not gonna lie I was hoping for something more destructive. Then was like oh damn that’s all I need to make that (non destructive thing) 😂 actually I’m still impressed 😂
Most likely an inline resistance inside the plug housing. It's always best not to comment when you are unaware of the subject matter you are speaking on. That's why we always have these comment experts 😂 but really they have no idea what they are talking about 😂 but I guess it makes them feel better to just spit diarrhea into the phone 🤦🏻 I feel sad for people. So desperate and insecure
@@Woofwoof1929 Yes, so sad we didn't write an entire paragraph pointing that out. We aren't shitting on him, only pointing out a potential flaw. Which is greatly appreciated by other engineers. Unless of course you yourself would like to be stuck on the same damn problem.. geez. Get your head out of your ass. If I make a mistake or something isn't right I'm not going to just reject all other input and pretend I'm the best. Constructive criticism is one of the best paths to learning.
Back EMF protection diodes are also a thing most so called engineers even dont always do. Im constantly finding problems like this even in our modern expensive equipment worth $1000+ which is an absolute joke when you do not spend the extra $0.05-0.50 for protecting parts so it lasts longer. I honestly think some of these companies do it on purpose to sell the product more because I have reverse engineered before and given them my schematic with the fix and they respond with ego and dont want my business anymore LMAO
@@limitlessenergy369infact most companies do design them with flaws intentionally. They design one in such a way that they get damaged quickly and their buisness booms. I honestly think they're hiring engineers who can create the most flawed design with no suspicion.
Step one: get a degree in engineering Step two: get tools Step three: get parts Step four: build this Step five: plug in: Step six: try not to burn your house down
I had a current regulator mod for my soldering iron(transformer/fans fanspeed controller for 2005 ish fans, heard a buzz ignored , sparks, very small explosion, fire started but luckily it was in a container without much airflow so I quickly disconnected and watched blue green flames show for about 5 seconds
I think the v+ and God shorted cause of a dirty mod using improperly sealed wires which were coated long ago before 2012 ripped out by force and not properly tested
So the transistor circuit is a darlington pair design. They make darlington transistors so you didn't need to do all that soldering. The USB plug wasn't necessary, could have used a standard battery pack. I'll name your project: "Bored at the bench"
guess it's intended a little fun project for beginners which might not having laying arround Darlington transistors. Me I never glue anything to a battery or akku.
And how complicated was your first electronic project? Do you not realize that there are beginners who start with simple projects. Maybe you were born an electrical engineer and never needed any education; never had a need to complete a simple project before becoming the world's leading electronic engineer. Not likely. People who only criticize others are more likely losers who just looked up and learned what a darlington configuration is 5 minutes ago. Real electronic engineers or technicians (just like any other profession) aren't so quick to criticize/insult others in the same profession. You should cover your ignorance. It's showing.
Exactly, let me diy this with my sodering tool that I have in my junk drawer. Let's me see if I have some electronic parts laying around in my house too
They are trustworthy. It's just that it can fry like any other VAT (Verification Absent Tensions) Tensions Presence Checking, in English. Like they can't fry aswell... It's just another thing to make the electrician jobs more technical and scare off the Sunday crafters I'm an electrician myself in France
Just don't. For starters you can buy a reliable actual voltage detector for $14 at lowes. Then the fact that you are making something that even the reliable product is called a lie stick tells the world you have no reason to be messing around electricity.
@@Kjuice6 Or even better. Check "Nico Staff - Fast and Run". I don't know why physialis is registered as the creator of the tune since it's obviously made by Nico.
if you're curious what's going on in the circuit, it looks like a darlington pair from BJTs and the coil drives the base current when a field is present. You should include a current limiting resistor for the LED and transistors because there is no "built in" resistance. Just a forward voltage for the LED and you're supplying that via the power bank but it will burnout eventually without limiting the amount of current through it.
I guess there are multiple reasons for that: (1) The detection inside a wall such as concrete isn't as easy to detect while drilling. You would have to check before (!) drilling and Yes, that could be built into the front head of the machine and make it a marketing plus for sales. (2) On the contrary - even if the parts itself would be really cheap - having reliable electronic circuits built into a non electronic machine requires additional engineering such as housing design, additional cables and AC DC transforming - all additional costs. The drilling industry doesn't even offer smart solutions for dust suction for wall drillings (I know there are cheap Chinese tools - and have it - but they are a hussle to use).
I know something else that’s pretty cool. There was a kid back in the early 60’s I believe that actually made a nuclear device at home…..no joke, look for it!!! These two guys would have been best friends!!
@@loc_realI’m no professional but here we go. 1) No resistors or insulation… that can’t be ok. 2) Soldering over superglue = California cancer causing fumes. 3) Trying stuff like this without understanding it may or may not result in anything from breaking components to burning down such a large area that antarctica completely melted resulting in places like florida and venice are submerged in polar bear infested waters.
We have these here also . We just plug into a wall socket whatever electric device we want to use and if it doesn't work we have found out that the device will not power on . Its truly n amazing skill i haveplugged in up to 10 different devices and notice that all but 1 device out of the 10 didbt work !
You can by a handy screwdriver (that has an led light and a couple of disc batteries in the handle) that does the same thing. Around £5, hold it by the tip and the handle will light up near live wiring. Also works as a continuity tester to check fuses and cables. No soldering required
The led turns on because of the presence of the collapsing *electromagnetic field* from the AC drawn in By the coil. The transistor senses it and let’s current pass to the led. Coils can convert AC to a magnetic field and back into AC given their turn ratio. This is how transformers work. And why you need a full bridge reciter to convert it back to DC for use in a DC circuit. 🤦♂️
@@Crux161 No, because a transformer is a current based device; leaving one end open allows no current to flow. Additionally this would require that a current be flowing in the mains cable, but a detector like this will work with no load connected. This is an electric field detector, the "coil" on this device is simply acting as one half of a capacitor, it doesn't need to be coil shaped at all. Usings a flat plate would actually make this more sensitive.
Like one of the people said this is a really cool project if you like electronics, if you know how to work on electronics how to solder, for all the people that keep commenting and saying how you can go pick one up for about 15-20 bucks, it's not the point it's the fact that the guy loves making nerdy electronics, this would be totally something my dad would do because he went to school for electronics got about 45 degrees and it everybody in my house growing up had their own everything people used to throw things out to the garbage and half the time it be like $2 fix or five $10 fix you know he can fix it in like 5 minutes, person down the street they just threw out a 40-inch TV that cost him over a couple hundred dollars just gave it away practically for a $5 fixing problem, once again if you love electronics and you're a nerd there you go, I think it's really cool.
It's called a proximity tester or tick meter, and one should never fully trust it, always treat wires like they are hot. Do it for your own safety and good.
