школьник коммент оставил)

What is it bro?

Раньше такое собирали на полевых транзисторах, еще в школе. Ни чего особенного

@@ecc7041 yo Russia is cool but putin is the man fair play.. cool as fuck. I love Russia.. big upruslandxxxx

@@ectoro1 what are you dribbling on...

A u menya vse nabarot. Stal lisim, bednim i XXX prishik.

Законы сохранения тут как тут

Такая же хуйня

Ключевое слово,,большой,, ....😂😂😂

Денис ты счастливчик , а вот у меня такой хуйни нет ... , но я счастлив .

@@user-gg5cc1iq2z ясно,да агрессии навалом, жаль электронику собственную угробили.

@@user-gg5cc1iq2z Да уж, электроники это каста. Чужаков не любят.

@@user-gg5cc1iq2z Обычная индикаторная отвёртка на светодиоде с батарейкой выполняет те-же функции+. Индикация фазы, индикация нуля, поиск обрыва провода, обнаружение скрытой проводки если не слишком глубоко.

@@DaeDoom если вы не радиолюбитель, вам такое не понять))

@@user-gg5cc1iq2z а я не очень понимаю,ибо везде она разная была и по разному оплачивалась,во многих местах аналоги современных персоналок предлагалось еще в начале 70х и т.д и т.п. но партийной верхушке это нафек не надо было,вот и получили что хотели. Процесс управления слишком не простой.

Exactly what I thought. The switch when in OFF (0) position appears to be on, and in ON (1) position, is off!

@@ukeleleEric I know why. Because the part of the switch sticking up shows you the state of the switch. Notice how the switch also lights up when O is pressed down. That's terrible unintuitive design.

USA switches work opposite to UK and most of the rest of the world.

@@Roanokee but why does UK do it like that? In my mind, it’s like binary. 0 means off and 1 means on, and O is open so I is closed. Is there another thought process that makes the UK method make sense?

@@sploders1019 it works for the UK and possibly 90% of the world outside the USA. It doesn't really matter though. When I visird the USA I got used to it within a day or so.

Лет 100. Где-то со времён Термена. ... а идея -- не оставлять "висеть в воздухе" базу, тем более, не изолированную -- была известна мне с младших классов. (Для того, чтобы сжечь транзистор в этой схеме -- можете быть достаточно потрогать "антенну" пальцем.)

:)

LOL

Real

Very strange, off is on and on is off

No it's 1 or 0 it's a circuit close o circuit open electric symbologi

Lmao

Not all power strips have a light in the switch. But a no touch voltage tester is probably less expensive than the materials required for this.

@@harryrammer Or if you plug a lamp or a radio in and it lights up, it means there's juice.

This detector can show you which outlets have no electric flow. An unnecessary device, but an interesting one.

можно самому такое собрать, и проверить

Привет ты русский?

@@zcommandante А Вам не пришла мясль в голову,что эти все изобретения почему то не нужны были СССР,и их не регистрировали.А напечатанное в журнале ,не защищённое патентом ,есть открытая для всего мира информация.Вы не в ту сторону задаёте вопросы.

@@igorkrehetov7229. А вам не пришло в голову, что так поступали не только в СССР, а гораздо раньше, в РИ. Вспомните Черепанова, Попова, Архипова, да и прочих.

@@igorkrehetov7229 мЯсль)))

@@user-wx4ot4kk4m ....А также киевлянина Игоря Сикорского,конструктора самолётов и изобретателя ЛЕТАЮЩЕГО вертолета(а не модели).После отказа в РИ,он поехал в Штаты,одолжил у композитора Прокофьева деньги и организовал компанию по производству вертолетов.Она существует и сегодня.

You need to first figure out what Zin is for a Darlington. That'll give you a hint what's going on at the circuit's "front end."

@@demef758 You don't need any figuring out, just basic transistor knowledge is enough to predict what would happen.

Это что бы люди удивились и спросили. Каждый комментарий - это продвижение канала.Но судя по тому, что кроме тебя этого никто не заметил, люди этот канал не смотрят. Только боты и полные пустышки, которым пофиг, что им показывают. Они все залайкают. Не вдаваясь в детали.

I have one that doesn't even use batteries, it uses the EMF to power it.

@@ikannunaplays на батарейках более чувствительная

@@SimonFF87Yes that is true. EMF powered is good for specific applications where the EMF you're looking for should be strong. Self powered good for general purpose.

Well spotted

@@anthonywilson4873 had to scroll way to far down to see this comment. Thought I was going insane.

😂

+

Попробуй и мой...на язык.

Я радиоприемником до сих пор проводку ищу. Пока ни разу в провода не попал

@@MrTANTORin Ламповым радиоприёмником ищешь ?

+1 Судя по всему да!)))

Начинающий Дэвид Коперфильд, не всё учёл)))

😁

@Tom Reeves it still happens ! very annoying !!!

Defeats the WHOLE video? I didn't think it defeated it at all.

Idiocracy is real and growing.

i just ram the drill bit trouch the wall, no bang and i know im good.

@@predater5017 Ha ha ha.. that is how I park... NO BANG and I know I am good to stay there.. Hear a bang and I drive off..

@fred McMurray every tester i've seen has a light on it. i don't think i've seen a tester with a numeric display that isn't also a multi-meter. what would the units be? electric or magnetic field strength?

@fred McMurray again, every non-contact voltage tester i've seen has an LED indicator. you'd have to be going out of your way to find one that doesn't have an LED. DIY projects are usually not designed nor tested to any set of standards/regulations that would guarantee reliable operation, hence why i make the suggestion that a COTS tester will be better. this is especially important for applications like this where you're trusting your safety to the proper functioning and calibration of the testing equipment.

+1 вот причина почему люди больше не занимаются радиолюбительством так сказать, да и кто сейчас паять умеет из подрастающего поколения, знает базу радиоэлементов!?(((

Ну там коэффициент усиления меньше, там же на одном транзисторе. Хотя если в полевых условиях проверять, то думаю на расстоянии в 3 санта в бетоне ловить уже не будет. Если бы все так было просто, то давно уже нормальные искатели проводов запилили. А так дерево ищат, железо тоже кое как, а вот провод глубже полутора сантов уже не сильно хочет.

тут еше пальцы паяльником можно обжечь в этом интерес

@@andrewheroin а как же без этого. Но кто в теме, тот знает что надо сделать сразу.... обожженный палец прижать к мочке уха!

@@Trevis_Bikle я 2004 года, лет с 10 интересуюсь, изучаю тему. Хочу свою жизнь с этим связать. У одноклассника младший брат Арсений - ему 10 лет, тоже пайкой и т.д. занимается. Но мы с ним, пожалуй, единственные со всей школы..

Ну послушал анал " дождь",это не опечатка-не канал а именно " анал'",и что нового узнал бы? 😵😨😩😬😰😷😠😳😱😭😦👅👄💋💦🍓🍓🍓🍓🍓🍓🍓🍓🍓😘🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓🍓

А лучше и то и другое

А если антенну сделать в виде скрипичного ключа..это перевернёт весь научный мир!!!

А реально,что бы было?

И подошел к телефонной линии, когда по телефону кто-то трещит.

It's a Russian joke 😂. Yes, the marking is wrong,

LOL. That makes sense then.

"I" - on, "0" - off. It was valid even in the Soviet time.

BTW, it's not I and O it's 1 and 0. Just like a computer. Ones and zeros.

@@epicasphalt6298 even having this meaning it was never marked as "1". I have never seen this in any country. But the idea to use I and O as the symbols of 1 and 0 invented in 1973.

Isn't it just a small EMF meter?

Безбатарейная тоже.

для таких задач, у каждого в кармане телефон есть

You learned what by buying one? Plus the cost is considerably less to build one, and you learned something. Why are people "especially in the USA" so against learning or educating oneself? Oh you can buy a made in China piece of plastic with the cheapest quality components for a few dollars, then throw it in the garbage in 4 months. You can buy matches or a lighter to start a fire, but knowing how to start a fire without either will serve you better long term.

To do it yourself is more fun than simply buy, buy, buy.

This one is less than a dollar, not including the battery.

если в стенах арматура или сетка, то тоже "звенеть" будет вся квартира. Даже современным трассоискателем найти провод в стене или обрыв - целое кунг-фу )))))

Wow wtf lol

Your grasp of the meaningless is amazing.

@@dhanke2777 - great reply. The best I've seen in awhile.

Good eye.

That irritated me as well.

You realize that's not a 1 or a 0 right? 0 represents a closed circuit. 1 represents an open circuit....

+1 кликбейт мать его за ногу

слишком тихие слова от тебя.

Ну да.Убей время,а после,выкинь эту хрень на помойку.

Громкое название для ролика Но чтоб схему осилить Надо съесть анаболика

the setup from video gives you an amplification of some 100x100x100 = 1 000 000, or more, at this level it will pick up radio signals and changes in the cpacity; would be nicer if hooked up a speaker in there, then could hear something if the frequency would be 20Hz~16kHz

.

There's one of these lurking in my kettle...

ты утюг включаешь полярность по фазе соблюдаешь тож умник

@@user-gt2ju3zb9r Причем тут полярность? кнопка неправильно припаяна.

@@TheRakks припаяна правильно - а вот клавишу на кнопку натянули неверно )

sacale la "h" a era

Сидят два монтера на столбе что то чинят. Мимо проходит бабка. Один монтер говорит: бабушка подайте пожалуйста мне вон тот провод. Бабка подает. Монтер, обращаясь к другому: я же говорил что это ноль, а ты "фаза, фаза" :-)

Сё,так оно на самом деле есть так.и самое главное,что работает же))(

Да, все через одно место👍🤣

Как это понять ?

Это для полноты эффекта.

"1m - 10m resistor on the first base to emitter" Umm did you mean the first emitter to base? Also I assume you meant 1M - 10M?

First emitter to base or base to emitter, same thing. Yes, 1M-10M

@@marcinmerrimack1726 Cool, tks I was looking at the direction of "signal pick up" from the wire loop -> first transistor -> 2nd transistor etc. Time was when I'd have known & understood exactly what you were talking about and why but I've forgotten just about everything I used to know about electronics 😞

It's a triple Darlington connection. There's a high DC gain, but It isn't working with a DC current. The gain is necessary in order to pick up the signal from the antenna and amplify it enough to get current from the collector through to the final emitter stage. Forward voltage drop of white LED is usually around 3V. So the circuit doesn't need a resistor, unless you're using it to detect the output of a Tesla coil, or some other high alternating voltage source. If anything, it might need a resistor in series with the LED when using a higher voltage battery.

Lol.

😂😂😂😂🤣🤣🤣🤣

Будет тяжко, но как-то жить надо... Надо!!! 😒😔

Олдскульный Старпер удивил)))

АнтиВор Именно так. Это схема с ОЭ была в книге издательства Московский рабочий, которая называется "300 практических советов", ох не сорвать... За 1984 год, вроде.

@@user-tj3xm3lc5w а кстати точно, она у меня до сих пор на полке стоит :) Но я по другой собирал в свое время. А что фокус, это только для детей в цирке фокус. Коими и являются пожизненно современные ЕГЭшники.

@@kullibbin вот что отличает постсовок от нормальных людей - сразу начинается "а я вот в 84 ом году.. а вот помню было, да ну хули епта - это для детей, я вот ракету могу собрать, просто не хочу" лучше бы сделали похожее видео да и с обьяснениями. Этот ролик могут смотреть люди которым интересно и они не видели журнал за 84й год. Но видать пиздежом пустым русская душа полнится.

по сути схема 50 годов, с самого появления транзисторов, давным давно на составном транзисторе выпускают индикаторные отвертки для обнаружения электрического поля.

Какие детали? Транзисторы?

Да, самоделка ни о чём, но транзисторы можно наковырять много где

@@justman7656 я если что арендую заводской, за 30 лет потребовалось один раз) те кто профессионально занимается ремонтами квартир\домов предпочтут купить. вроде не постапокалипсис что бы рыться в мусоре и дергать просаженные элементы

No, not when the led can stand directly the 3,7 volts from that battery. (Li-on max 4,3 volts). I know the amplifier number from this system can be up to 500^3....but even than the max ampere is limited by this 3,7 volt and resistance of that led. (I did my study electronics in the tume when microchips nearly not existed.)

The transistor also limits the current somewhat.

@@reiniernn9071 LEDs have different forward voltages, red ones being around 1.6V-1.8V. The problem with not using a resistor is there's no upper limit in the current to the LED, so the LED will die if it's maximum current is exceeded. It's poor design practice to omit one.

Szabolcs, are you hungarian

@@andys8718 I am

Tongue tingles = 9v. Wake up in hospital = 120v. Yeah, video will save you some money and time. LOL,,

я и 220 вольт пробовал на язык...и ничего живой

I used to use my penis and now my girlfriend lights up every time we have sex.

@Event Horizon 🤣🤣🤣🤣🤣😅😅

How many times have you been electrocuted? Lol

Alex Ander Я тоже сразу заметил не по феншую,.. дисбаланс . Конечно только синия)))))) Нифеньшуя не понимают это ,а за дело берутся

Наш мир держится на синей изоленте )

@@rusplan Делай русский! Синий Klebeband в основном часть вашего устройства !!!

лучше скотч он ещё практичней

Есть еще мусульманская изолента,зеленая.

And how was the switch working the wrong way?

Buy some perfboard. It costs almost nothing and I will keep your circuits together better. Cardboard is good though for testing circuits.

Good eyes, catching that backwards power switch! I missed that.

@Ennio Ricciardi To achieve current amplification to all 3 emitter-follower stages, all 3 transistors must operate in the constant-current (linear) mode of operation. One must bias or "force" the base of input stage transistor to at least 2.1Volts. Normally, one can implement a voltage-divider at the base of the input stage transistor . However I don't see it here and the circuit still works -- I guess I must have missed something, can anyone help me out? The current driving the LED at the output is Iout = Betaf^3 * Iin -- no wonder the circuit can be sensitive enough to detect the input signal! The sensor head is basically an antenna. Incoming electromagnetic wave from the source excites electrons in the wire of the sensor head, generating an AC current at the input of the circuit (current amplifier). The circuit amplifies the current and use it to light up the LED.

Thank goodness I wasn't the only one to notice this and surprised on how far down the comments I had to go to find one...

Or you can buy one for as little as $5.00. FYI - It will probably cost $2-4 for the components to build the DIY device.

The sarcasm is strong in this one ;)

Reminds me of when my dad got me my first HeathKit crystal radio kit with morse code telegraph key back in 1971. I used it to hot wire his car. Probably not what he had in mind but even as a kid I liked to think outside the box. It was pretty simple. I took one look at the telegraph key and pictured the car starting when I pressed it. I used the on/off switch, the alligator clip wires and the telegraph key. Worked great. Taught myself how to drive as my dad was always away working on a remote mine site. Then there was the time I got interested in rocket fuel...my parents were to blame. They let build a pretty impressive chemistry lab setup in my bedroom. How on earth did I survive my childhood...

It is a wonder any of us make it to adults @@FlyingScot911

how can this work with DC?

Yeah Home Depot sells them for 10 bucks, and it beeps too.

Yes that is true but the point is to learn how things work. We have a lot of things that can be purchased today but these videos at least shows you how they work if only at a basic level.

@@JosephHelmstetter it's being presented as a new invention.

@@manosprotonotarios5187 You'd be surprised how much "noise" travels through those disgustingly built cheap AC to DC chargers. Not the mention the shielding of the USB cable can actually act as an antenna. :-/

@бот жаль ты не не можешь написать понятно, фиг пойми чё ты написал.

@@Richard-Price 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

this gates had exist the long time before he's dad thinking about some naughty so I am not so impressed as you

@@kimpetersen2438 This channel has no videos. 🙄

disculpa, eso es un probador de corriente?

@@betcald-teach es un pequeño aparato que te ayuda a encontrar precisamente en donde esta el cable cortado. Me imagino que si tienes un cable de sonido o una extension y no funciona, le pones algo de voltage y con ese aparato lo pasas a lo largo del cable y con la luz encendida te muestra que detecta que adentro del cable pasa corriente y asi hasta que llegues a una parte del cable donde la luz deja de prender indicandote que ahi es donde el cable esta cortado.. yo soy dj y tengo un aparato para checar los cables si envian señal o no.. pero con este invento podria agarrar esos cables que no funcionan y ver exactamente de donde esta cordato el cable por dentro y abrirlo para repararlo..

*IT'S THE RUSSIANS*

@@randomdude9135 they are planning the jihad

😅😅

After i watched he cleans his room and i come

He switch in the wrong way so i think it's fake sorry so it might not works ...

Yeah the usb cable is an open circuit.

i think its picking up the magnetic of the voltage. Probably doesn't work for powering items that are larger but that sounds like a test to perform don't it?

@@V2k2010 I don't really know enough about electronics to say for sure, but I'm pretty sure it would an electric field because as far as I understand you need current to create an electromagnet. Also it's not directly powering it. I think the transistors in the circuit are basically acting like amplifiers.

@@V2k2010 I don't really know enough about electronics to say for sure, but I'm pretty sure it would an electric field because as far as I understand you need current to create an electromagnet. Also it's not directly powering it. I think the transistors in the circuit are basically acting like amplifiers.

This have no right to work as he have shown, especially detecting DC MOSFET may actually work, but then we have problem of turning on first stage. Bipolar transistors needs 0.6V bias, which simply does not exists anywhere there. This is fake

@@WizardNumberNext BJT have Collector Cut-Off Current (actually less, than 1 mkA). And electromagnetic fields can give additional current into Base. Three BJT Darlington cascade give more than 1000000 times rate of Base Current of first BJT.

@@WizardNumberNext Yep, as fake as radio waves and transformers. Maybe you should spend a whole dollar on a few cheap NPN transistors and LED and try it before crying fake. The only "fakeness" here is your implied knowledge on how the circuit operates. Yes a MOSFET will work too, but your knowledge of bipolar junction transistors isn't as good as you think it is. The fact that he used discrete NPN transistors in a darlington configuration clearly demonstrates his knowledge is superior to yours. Here are some words you should ponder before shooting your mouth off: Better to remain silent and be thought a fool than to speak and to remove all doubt. - ABRAHAM LINCOLN. At least he took the time and effort to create an instructional video and share it, what instructional video have you posted that is even as good or better? None - period.

@@clawsofscorpius the fact you ignored that none of transitor are biased, not to mention first one, shows how ignorant you are and your lack of understanding. I am well aware of Darlington. I do not do such videos, as I am rather busy with spreading my knowledge in material and WORKING form, WORLDWIDE. I am selling enterprise grade computer parts. I have sold over 4000 orders. By the way I doubt you understand assembly (x86, x86_64, PowerPC, arm, arm64), physics and electronics (there is no full understanding of electronics, if cannot workout exactly what is happening physically inside circuit). In this circuit there is lely no way to turn on first transistor unless it would be brought close to huge transformer, which will brake in it fraction of second (to high current)

@@WizardNumberNext It's not my fault you're too stupid to understand the first stage uses an antenna to provide a input signal to the base, nor that you fail to understand how transistor gain is achieved in BJTs. You might want to inform the other people indicating they built a working version of this circuit that they're all wrong and it doesn't work. Your command of the English language is pretty awful. If I understand what you are attempting to convey, it would seem to indicate selling "enterprise grade computer parts" in quantity makes you an electronics guru or engineer. If that logic works, attempt trading in your frequent flyer miles and upgrade to pilot the next time you travel. If you tried spreading your knowledge, it wouldn't cover a piece of toast let alone the world. Do us all a favor stay busy with your "orders" and refrain from posting uninformed comments. Actually I have programmed in assembly language and C ( en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect Jameco (and other companies) sell non-contact voltage sensor kits that are nearly the same circuit as the video demonstrated. Maybe you should buy one and improve your knowledge rather than advertise your ignorance. You can read more about the circuit or purchase a kit from here -> www.jameco.com/Jameco/workshop/JamecoFavorites/non-contact-AC-voltage-detector.html Even a simple Google search for something like "non-contact voltage sensor schematic" is going to yield similar results to the circuit demonstrated. Since he didn't use any current limiting resistors the voltage needed to be lowered to prevent burning up the components used in his version of the circuit. If you really want to be taken seriously and perceived as professional by other people improve your English skills. You should have used "break" instead of "brake", and "too" instead of the last "to" in the closing sentence. I taught college-level electronics, automation, and industrial electricity for 20 years prior to retiring from teaching. I know, whereas you think you know. I will waste no more time on you. We have a saying in the educational field - "you can't fix stupid". At the least try to address your deficiencies rather than flaunt them.

It's an amplifier. It picks up mains hum and produces enough current to switch the led on. Such an effect is usually just a nuisance.

LED には 電流制限抵抗は必要ですよね。ところでこれはいったい何の役に立つのでしょうか？

@@user-xx3oe4qk7h 現在の検出器です。 たとえば、電流を検出しただけでデバイスを離した場合、抵抗器がなくてもしばらくの間点灯したままになるなど、抵抗器は誤検出を止めるのに役立ちます。

A resistor for What? If you dont understand electronics just stay quite

@@denniss9620 It is very clear you do not understand electronics. Despite that you write insulting messages to others who do. You are the epitome of the modern age, arrogant in your ignorance. The resistor is needed because otherwise small electric charges in the air from static for example will set it off. The resistor would mean that it only activates with a consistent electric source rather than an intermittent small source. You are a fool, I would hope you could learn from this and keep your ignorant mouth shut in the future, but I sincerely doubt you will have that much intelligence.

@@paulosullivan3472 Give it up Paul this circuit is not going to detect non contact DC. Not to mention the power strip switch is apparently working backwards. I doubt that. And if you are worried about sensitivity you need resistors at all three collectors. I dont know what you mean by "small""resistor but one megohm would be a good start for the first NPN after the antenna. Now how does the antenna detect non contact open circuit DC voltage?. Also I think you would find this circuit is more sensitive to capacitance then static.

we forget that if it osillalates it radiates enengy

The fence radiates a huge repeating spike in the electric field. That will light up a lot of electronics that have circuits sensitive to induction. Remember those flashy unpowered bling leds that you could stick on the back of your phone? Same thing, sapping EM energy that passes through the antenna.

power actually flow in the magnetic wave of the wire. many believed the wire carries the electricity it directs the magnetic wave which the electricity flow in waves.

Сядет.Но по другой статье.

Вы с пьяну -чего только не придумаете )))

Откуда вы знаете? Может быть он давно на ней сидит?

И радио кружок где спаял первый транзисторных приёмник,база эмиттер,коллектор.Включил=а там!"Королёва красотыыыы!"

I assume that guy was not an *old* electrician.

and yours probably has insulation so it doesent explode in your hand when you touch a wire

No entiendo la utilidad

Jajajaja 😂😂

@@morritox pues para detectar si hay corriente en un cable o enchufe de una instalacion supongo Sol9 como indicador

@@Sigmasapiens_oficial mmm...... Pues como el video dice que debe estar en todos los hogares pense que era algo mas util... Que perdida de tiempo :/

@@morritox pues puede ser util si vas a checar que algun componente electrico este energizado pero nada mas Si no es el santo grial de la tecnologia😂😂

good point!!!

That could make for some cheap little kits.

@@chaos.corner Or I guess what you could do is simply print the silk screen layer on some paper and make sure it's registered at .100 then attach to some readily made perfboard. -- I'm guessing it's been done. You could also print the connecting lines on the bottom with the solder mask layer (!)

я не понял зачем в каждом доме

Интерсно на какую "глубину" эта штука работает?

Я бы в первый каскад полевик поставил, а потом просто эмиттерный повторитель ну или наоборот с нагрузкой светодиода на коллектор. Лет тридцать назад собирал подобную схему но в качестве пробника фазы

@Вадим Неверов Это не эмиттерный повторитель, а составной транзистор.

@@user-ym7wr4zu9z Гвозди забивать))) Что бы не в проводку

во во. отвертка-тестер

Одному надо, пошел купил. Рукожопые. Другому интересно сделать своими руками, в этом их смысл жизни. Такие - двигатель прогресса.

@@user-dd1bi7bv2z А причём тут рукожопые? Просто надо взвешивать степень интереса и возможного гемороя.

@@user-dd1bi7bv2z интересов на свете существует миллиарды каждый в чем нибудь себя найдет.

Not quite true. It lets you detect AC VOLTAGES, not magnetic fields. It works by capacitance, utilizing the very large voltage swings of the AC power supply and capacitively coupling those voltage swings to the hi-z input of the 3-transistor Darlington. It doesn't take much capacitance to make it work. A pF or less will do it. The amplifier will half-wave rectify the signal, driving the LED.

Thanks NoSunBeach. I had to plough thru 40 comments before I found what one could use it for.

Такой хрени нет ни у одного электрика.Оборвется в стене провод , он тебе пол квартиры расхерасит.А так дал ему эту хрень,он найдет место лде оборвался провод,если электрик хотя бы не много соображает. Обычно у них не фига не бывает сканера фазы.

@@user-wi3ox6zi5g я сомневаюсь что эта штука через несколько см штукатурки будет работать как надо

@@user-fd2ib7dd8h Если перед первым каскадом,доработать и адаптировать полевой транзистор,и срезонировать антенну на 50 герц .добавить в выходном каскаде транзистор помощнее и через конденсатор присобачить динамик или зуммер.Будет показывать и пищать еще..Согласовать антенну переменным конденсатором ,шунтировав ее второй конец с минусом питания.А так может не показать ,если провод будет грубоко в стене.До2-3 см покажет точно.Доработать можно, будет показывавать до 5 см. Детекторы снрытой проводки стоят от 3 000 рубл. 5 см глубина. Этот стоит копейки,если доработать ,увеличить чувствительность ,и снабдить экранным колпаком с одной стороны.Модет получится даже лучше заводского.И главное собрать можно за полчаса,при наличии делталей. Согласовать антенну и резонатор под 50 герц, еще час, час коробку присобачить. Не был бы я таким ленивым собрал бы. Зимой напояю попробую.Пока не когда.

@@user-wi3ox6zi5g хоть что-то из этого было сделано на видосе? именно, нет.

@@user-wi3ox6zi5g , ок , реагирует на провод без нагрузки. А если в стене обрыв "ноля" ?

You miss the point.

Me too, but it seems like this invention can also detect LOW DC voltage from output of an USB charger (5 volts in this case). I really doubt this part.

To check for a live circuit.

Thanks for watching

To repair cables that look ok from the outside but from the inside are torn.

😀😃😄😁😎

только с вечным тормозом

@@virabhadra2 ? Google is not offering to translate...

Дурак или как ! В России такое чудо стоит 50 рублей 🤣🤣🤣🤣

@@user-eu5xb1eo2c oh, you Russians! Greetings from Australia.

I imagine that I detect you without the slightest difficulty

Приёмник обязательно должен быть на длинных или средних волнах.

ну да только уж больно они статики боятся

Неплохо пишется слитно, грамотей! В этом году подарков не получишь.

If the spirit is being electrocuted by AC current

Sherif lol😂😂😂😂

Next episode he's showing the incredible idea of making something round that will turn as you push it over the ground. This new "wheel" idea is definitely going to be the next big thing.

As cheap as $7.95 at Home Depot (may find one cheaper at other places). You can carry it in your pocket, toss it in the tool bag and it will not break Or you can buy a good brand (Klein) for $14.00 All he is doing is reverse engineering things

It's an incredible idea for "home made DIY". For around $3 in materials (not including the battery), you can make something that's functionally equivalent to a commercial product with a much smaller disposal footprint and much larger recycling footprint. I think it's a great idea.

@@l.m.892 Toss it in your tool bad it it trash...Filling the land fills. Where the tool you buy (mine is 6 years old and still working) can be carried around in your pocket, toss in the tool bag, dropped, loaned to others, and keeps on working...and it is UL approved ($7.99 with batteries) in fact my beeps if I switch it on And I get paid a lot more that $7 an hr ...about the time it may take to build it...after getting all the parts

@@l.m.892 The commercially made equivalent is the size of a highlight marker. Don’t see how your coming up with a smaller foot print

jajajaja casi lloro

nice avatar : the most complete formula of mathematics

sensitivity

You get less gain.

Lots of reasons to NOT use a MOSFET here, but the best being "exposing the very sensitive gate to static electricity hits will surely destroy the FET."

No way.

@@user-ix8hw4un6k чем глупее контент, тем больше просмотров. Реального кота, лижущего яйца, просмотрят 10 миллионов. 10 миллионов идиотов.

Elsewhere in the comment section I found the transistor number BC547C, written as a disambiguation, so I'm guessing they knew what they were talking about. That's all I can tell you, I'm guessing you'll be able to work the rest of the circuit out from there, assuming limited varieties of led diodes. Otherwise I'm as clueless as you. Seems pretty safe to experiment with at 120VAC.

I'm guessing this is a troll post given that everything is literally shown in the video itself. If not, Then NO you cant build one of these because it contains obvious choking hazards.

​@@russianbot4418 Yes, I went straight to the comments, saw the confusion and then after re-watching the video realized that it wasn't a C series it was the undesignated series. Thanks for clearing up multiple errors on my part with such diplomacy. Your last name wouldn't be Mstislav by any chance, would it?

@@johncaccioppo1142 No, Its opensourcislav. 😋