How to make VU Meter without any ic without transistors without PCB

[@ironforge7646]

I like this, reminds me how the old valve tech was wired before pcbs were used, its olschool wirring, simple and works great, also can be used as a low voltage meter... great work either way really liked this simple build well done 👍👍👍

[@harunservice8376]

Simple ... Top amazing ..👍👍🙏 Indonesia..

[@arnbon6241]

You are king of the kings!. Thanks for posting and keep up the good work!.

[@ToddHofer]

As an added bonus, this same circuit could be used as a Low Voltage volt meter. ;-)

[@Sctronic209]

Has different voltage drop.

[@domtryverton976]

no need to use zener diodes here. the circuit works/use due Voltage doubler at input

[@bitbistro]

You are right it could be any diode with a normal voltages drop. The design works because each diode is cutting out about .7v.

[@gfr2023]

please explain why using zener diodes, i see they are forward biased so why not use simple diodes ?

[@vincenzoavella1076]

He can also put only the LEDs in series because also LEDs have a voltage drop

[@valasoft]

American Tech projects are always extraordinary

[@taunteratwill1787]

As well as utterly useless. :-))

[@ishigamiyu1991]

@@taunteratwill1787 😂😂😂

[@tf3confirmedbuthv54]

An actually good video by American Tech, what is this world at this point

[@tevfikkaya1810]

TEBRİKLER 👏👏👏AYRICA DEVRE ȘEMASINIDA YAYINLARSANIZ DAHA GÜZEL OLACAKTIR. THANKS...

[@brawlstars64699]

Kya ye small 5V speaker 🔊 ke saath chala sakete hai 5V ka zennar diode lagga ke

[@ЮрийАлександрович-о2о]

Отлично, наглядно-ЛАЙК. Жаль не знаю английского.

[@matchetto1991]

The Red light must be the last when sound clips no the first one 😁

[@davidabraham1969]

That's what I was thinking. I'd reverse the color order

[@matchetto1991]

@@davidabraham1969 Great mate 😁

[@lordnss4967]

Matchetto yes,

[@shadowr2d2]

I would make two of them. Plus maybe run more lights. Yes *Red would be the last one..

[@anicetomaldonado]

And the caps should be orientated either backwards or flat to put the lights (meter) in a practical location where it can be seen and enjoyed. Like in car audio (the dashboard) or a home stereo.

[@vikkonstruct3686]

This is the really american tech! Good work!

[@УмирзакБайзаков-й3ъ]

Вообще то красный цвет должен быть в конце. А белый первым.

[@gharelublog9529]

Excellent work on this💪💪💪👌👌🤘🤘👍👍👍💓💓❣️❣️

[@Ing.Andresguerra1909]

Excelente proyecto me parece algo genial muy fácil de hacer no es tan difícil pero gracias a usted lo pude lograr 🙏 un saludo muy especial desde Colombia D.C en chiriguaná Cesar tierra del cantante Gali Galeano. Gracias brother por este video está excelente repito excelente

[@angelitogalope1930]

Hello sir your vu meter via LED very good design and clearly sighted...thanks

[@matiasjoelmerli5037]

Very good tutorial, excellent vu meter without plate, my question would be how to put a potentiometer to regulate the sensitivity and how to make it electrical so that it works with led strips?

[@soupflood]

You'd need a transistor for each LED strip, and a separate power source. The transistor base would be connected to the plus pin (anode) of the LED through a 1k resistor. To power the LED strips from the wall, you can use thyristors controlled by optocouplers.

[@andremartines5061]

Hello Friend. first I want to congratulate you on the projects, I've already watched a good part of your videos. If you can, could you tell me about VUmeter? requires minimum power? I want to use it in a project that has a very low power less than 1Watt. It will work ?

[@kiko3782]

Projeto das antigas 👏👏👏 muito bom.

[@khiradkalita6136]

Very nice and amazing bro 😍😍

[@scootergem]

nice little project. lots of information in related videos. thanks

[@technicalpoints1423]

Vvvvvvvvvvvv good 👍.Asif from dunyapur Panjab Pakistan

[@rmunozr]

Excellent project. And you also changed the sound track ... wonderful :)

[@szervizcitroen7623]

I would put the leds in the opposite order, and the capacitor should go to the back.

[@chanakyacheloor3155]

From India. Brilliant bro

[@Human-cq2py]

Meeeeeee toooooo indian

[@chanakyacheloor3155]

@@Human-cq2py Weldon bro...

[@Human-cq2py]

@@chanakyacheloor3155 thanks but why¿

[@Human-cq2py]

😀

[@juanramon1234]

Interesting I will try to make the circuit thanks for the information greetings from Piura Peru

[@ВалерийСоколов-ж8х]

Если это индикатор уровня сигнала, то цвета светодиодов снизу вверх должны быть в обратном порядке, а не так как в видео. Но всеравно прикольно.

[@BatooBatoo-z2z]

Это просто цветомузыка , анализатор частотного спектра так не собирается

[@gharelublog9529]

Thank you so much American tech♥️♥️♥️♥️🔥🔥🔥

[@109audio]

Todo muy bien! Pero el código de colores está al revés.

[@jillamistoso7553]

Wow,,,,,,thank you for a very clear tutorial

[@tongtong1tv]

좋은정보 감사드립니다 Good news thank you

[@PRDXae]

very very clean and good uv meter,thanks for it man

[@AndreySidorov-2012]

для экономных сойдет, хотя лучше уже делать либо на 3914/15, либо на микроконтролере - уровень и качество в использовании намного выше!

[@user-wt9pv8sz9f]

В 90 е были двухкассетные китайские шарманки у них диоды стояли по кругу на передней части тоже по такой схеме были

[@brahimchb74]

Big up good work 👏🙏

[@surajelctrnc4667]

VU meter ko banane ke bad kya use directly amplifier me speaker ke satha chalayenge kya? Aur ye 6000w ke Amplifire me kharab thodi hoga?

[@lee68]

Wow , very reactive 👍👌

[@sakunthala2070]

Wow 😲 you tube channel video 👍😂

[@mkmonu9252]

Excellent work dude👍👍

[@danicava2410]

It is very nice to see a job so well done and clean. I really liked the video.👍🏻

[@أمجدؤالقلم]

You are wonderful, Greetings to you⚘⚘

[@hemants.1039]

Very good.. 👌 This is called 'psychadelic light'.

[@bparker86]

Nope. It's a vu meter. Or a modulation meter.

[@bparker86]

What u said is a term used by hippies lol

[@suryadidedy70]

ic is a collection of several transistors, transistor is a collection of several diode. so it is............... hahahaha

[@Deebz270]

Not really.... An IC - Integrated Circuit - consists of miniaturised electronic components in one form factor 'chip'- not just transistors, but other components too - resistors, caps, diodes and not several, but hundreds or more, of transistors. A chip containing just transistors would be a - 'transistor array'.

[@aldoscaringella2532]

Bello ! Ma perdonami la domanda, ma non necessita di alimentazione? Va collegato direttamente sulla cassa?

[@techmalli19]

I made and its working From sri lanka

[@bparker86]

So as far as the electrolytic capacitors go.... Is the favlue really Important? Like let's say I only had 470uf or 47uf...how crucial is that value and what role does it play in the circuit? I wanna start building modulation meters for my rf amplifiers but I wanna know a little more about this circuit before I include this in my options. Any help is appreciated

[@cd-zw2tt]

I honestly don't think you need it. Fairly sure they are doing some sort of filtering. You also don't even need the rectifier if you are using a biased signal, or really any audio signal above 60Hz. Since the human eye can't really see changes quick enough above 60Hz (where most audible frequencies are 20Hz - 20kHz, so close enough), we can probably simplify this circuit to only be the LEDs, audio input, and resistors. I built this circuit without them and using 3.5mm headphone jack as input and it was fine. Note that I am not using amplified speaker level as input!!

[@aplicarciencias]

Why 20V zener diode? How many watts used are the output amplifier?

[@АлексейКувшинский]

I think it is for headphones only

[@aplicarciencias]

@@АлексейКувшинский maybe

[@MasterMindmars]

This guy is connecting the zeners in direct polarisation. So only drop 0.7v each one. This project is simply absurd. But the ignorants in electronics (not me) claims that this is good.

[@aplicarciencias]

@@MasterMindmars I really don't seen that. I was distract and didn't realize they were being used as regular diodes...

[@danc2014]

20 V zeners x 10 you need to put 200 V to light up that last LED?

[@slender1357]

No, the diode drop voltage is ~0.7v

[@lee68]

So it means that we can use 1N 4148 diode, right?

[@slender1357]

@@lee68 yes but you need an audio amplifier, for lighting up the last led, you will need ~10v( 0.7v *10 +3v), audio output from a mobile phone is ~200mV (this means the video is fake but the circuit may work with an audio amp)

[@southtexasspecials175]

Super cool..! How many watts do you think that set up couldtake ?

[@fas786000]

Very nice and simple video, sir agar zayada LED lagani ho to bhi capacitor ki yahi value rahegi?

[@CyrusBrinkworthRAS]

let say that nearly half of the power is going to this VU, if it suddenly blow of as so the speaker will blow after.... & about the cost of 9 20V zeners...

[@Pulse87dotca]

Nope. If you're throwing more out of your amplifier than what your speakers can handle, you've got a problem with or without this VU meter. Second, no where near half the power will go to this meter. This won't even be using a watt out of the possible 100 watts going to the speaker. Third, zeners across an amplifier output could prove to be disastrous to the amplifier: 1 watt zener - possible 100 watt amp output - zener overloads and shorts - amp overloads and blows outputs. Huge repair or junk amp all for the cost of some zeners. No thanks.

[@CyrusBrinkworthRAS]

@@Pulse87dotca ???,

[@CyrusBrinkworthRAS]

@@Pulse87dotca what ever the power going in this "passive VU" I will never use ore build it sorry, I make préamps and sounsystem gears, so what ever when you blow a speaker in the face of 300 people they all end with a hyperacusis ore even deaf.

[@Pulse87dotca]

@@CyrusBrinkworthRAS I would agree you shouldn't build one. I would say you shouldn't build any sound system gear if your system designs could blow their own speakers. It isn't the blowing of a speaker that would cause hyperacusis or deafness. It's the dangerously high volume levels from using an overpowered amp for the venue and people too close to your poorly matched speakers. "when you blow speaker in the face of 300 people"?? *When*? There's no excuse for blowing a speaker or making people deaf at any public performance. That said, a passive VU powered off the speaker cables is pretty dumb for a concert sound system. I'm a component-level electronics repair tech and a very competent front-of-house engineer. I've never blown a speaker, or made anyone deaf, even with a 1,000 watt sound system.

[@CyrusBrinkworthRAS]

@@Pulse87dotca 10years of soundsystem, all in 2homs never and any probs exetp ones, the DJ played some dubplates acetates that was really bad, and if I didn’t cut it of it would blow some hears (the VU was clipping) maybe we misunderstood etch others? and there are sound system that do not know about "mixing" and sonorisation so, they catch fire & more, and next day=head hake ...

[@marcelostabilekabeya6852]

Gostei do seu vídeo Parabéns 👏🏼👏🏻👏🏿👏🏽 Eu queria que vc faz um vídeo Led da Knight Rider (Super Máquina)

[@joonTech.]

Good video . Loves from India.

[@victorpinho4103]

Só faltou o esquema de montagem do circuito pra não inverter as polaridades...pra quem tem noção é facil.

[@Luke2311]

There is a mistake with resistor value because te voltage needed to light up a led is different for each colour, then you need a different resistor value for each colour.

[@rodd8170]

This would cause a minor difference in led brightness thats all.

[@JoyceAiman]

This is too good.. does it affect sound quality in any way?

[@doriscampbell9775]

no

[@kingsingh8115]

Bro tumne capacitor kaa positive or negative ek saath soldiering kiya tha yaa phir positive sirf

[@_GhostMiner]

0:00 *Why did you reverse the colours?!* 😡

[@hennessy4666]

If i want to have a slow response, so leds on off more slowly, can i do this by changing capacitors value?

[@Garock2]

Good question, did you tried this? Any results?

[@rodd8170]

No you would have 2 add caps in parallel with leds to slow it.

[@fenderjaguar5754]

Hi. Nice job you did but I want to ask how much power it can handle or can you explain for each diode can be like from here is 10 wats from here to here is 20 wats etc... or can you make form for like 4 ohm speaker 100 wats amplifier? Thanks.

[@Texno_Login]

Помнится такой эквалайзер стоял раньше на магнитофонах двухкассетных😉

[@zvova1]

Ага. Только это не эквалайзер, а измеритель. На китайцах в начале 90-х стояли сплошь и рядом. И выглядели эти магнитолы, как новогодняя ёлка.

[@arigatou_lim]

wow, very good work

[@joelongstaff7601]

Thank you for a great video. I would like to know if it would work if I put 10 more LEDs so there would be 4 at each point. I plan to use a 20 watt amp to run 4 of these. One in each corner of the room where our kids hang out with their friends. Space the LEDs apart and put them in white plastic pipes. The kids like to gather at our house so I will fix it up for the new years. God bless.

[@trinityblood333]

I saw it well. I'm curious. Will speaker output power decrease?

[@arnbon6241]

No.

[@rehan_the_gamer]

Obviously

[@researchandbuild1751]

This is how A/D comverts work, they sample eaxh diode at a fixed rate and store the value as 16 bit, for example (16 diodes)

[@cd-zw2tt]

no way! so more fine-grained diode/resistor combo is kind of like a larger bit depth?

[@akuahmadyani5919]

Wow 👍🏻👍🏻the best

[@azaelangeldelinfierno666]

Una pregunta ¿funcionan solo con el sonido ho ay qe ponerles algun voltaje para qe funcionen bien?

[@ladillin1903]

No lo probe pero no creo que funcione, los zener arrancan con 19,5 v y menos con la salida de audio de un celular a lo sumo prendera un led.

[@douglaskwon4971]

Very good!!!👍👍👍👍👍

[@jonatangoncalves6447]

Montei um desses, não durou 5 segundos, foi só erguer o volume pra ver se piscava até o último led...o mesmo não queimou mas parou de funcionar.

[@niswardfpv7949]

very nice project...i replicated it too but i need highr sensitivity... how i can make this more sensible cuz i am using it on a smaller speaker

[@NanoCreator]

It's simple and useful~

[@electronic7979]

Nice electronic circuit

[@saurabh-337]

Kya hum koi bhi colour ka led laga sakte hai

[@mojhajostechnique]

Nice project awesome😁😁

[@sushilyadav7026]

Good luck👌👍

[@joseptarrago9400]

Es posible incorporar mas led, hasta cuantos

[@hemants.1039]

Hi What if i play music at low volume or very high volume? Will it respond as same.

[@PlzDontKillDave]

No... because what is happening is that the diodes thats goes upward with the LEDs has a voltage requirement so therefore if you want to hit the white more often you increase the volume if you want to barely hit the red... decrease the volume till that happens... You need smarter components so that it can auto gain the output for the different volume inputs.

[@bonez1305]

Simple concept, i like this.

[@pauloroberto-yl6oo]

From what I analyzed of the circuit, we can simply use 1N4148 diodes in place of the zener diodes.

[@bparker86]

4148 diodes ARE zenor diodes lol

[@billvincent307]

@@bparker86 1N4148 diodes are NOT zeners. Look up the spec sheet before making a "smart" remark.

[@basilclarke-naturesway3165]

Can i use 40 led's? Which sequence can i use them, Green, Blue, Yellow and Red?

[@nitishkumarmaurya6903]

Bhai but 1k ka Resistors use krr sakte h kya???👃👃

[@Mr.Engine993]

I tried this and it works with my 15W amplifier, but it's not sensitive enough, it only lights up the first LED when volume is at 75% at amplification at maximum

[@MasterMindmars]

Simply one point: do you know that you don't need zeners? With normal rectifiers diodes (and more cheap than zeners) works too.

[@ConorNoakes]

They need to be zener in order to use the reverse voltage current flow nature of them

[@MasterMindmars]

@@ConorNoakes No. Zeners are in direct polarisation: + to anode and - to catode.

[@ConorNoakes]

@@MasterMindmars so they are, last time I looked into these ‘passive’ meters they needed to be the other way round to set the level per LED

[@MasterMindmars]

@@ConorNoakes That is. The zeners acts as a tension divider. So, they aren't necessary. Even can be replaced by resistors. More over. They are of 20 volts. If they were connected at inverse polarisation, leds will never light on.

[@EaknajaSoundDIY]

Can I use 100uf / 35v capacitors?

[@celular_soares3359-yu7yd]

Parabéns. Ficou lindo ficou pode ser ligado em potência de som 1200 w da wattsom elas não vem com v.u

[@Sctronic209]

Cool idea👍

[@LoumerManreal]

thus this can be used as alternative inaccurate voltmeter

[@ncgaming7298]

0:46 bro we have (PH 05 V1) It's ok or not

[@nesnduma]

Hello, what is the role of the capacitors and don"t they modify the global impedance of the speaker?

[@pawan_lakwal_1323]

क्या ये लाइट 10 या 12 इंच के स्पीकर मे lg जाएगी क्या

[@americanpsychosis11]

Do you increase size of caps for higher power amps?

[@rodd8170]

Cap Volt rating yes. But you would need to increase zener voltage or add more leds.

[@passoapassodofransom7172]

Show de bola amigo. Gostei

[@DIYTechnicianRM]

3 watt speaker k liye iye kam ayega thik se ?

[@xandeboy20]

Hey man, good night, I really liked the vu led, I would like to buy one made, you sell one for me...

[@龙猫-o2e]

For fun is OK,for professionals not ok

[@ЦветокЖизни-у5ч]

Добрый день, схема для печатной платы есть?

[@anupdev1986]

So beautiful 😍

[@Human-cq2py]

American tech trap town is a virus and glitch don't be friend and report his comment request it will block your channel E͟d͟i͟t͟ :t͟h͟e͟ n͟a͟m͟e͟ i͟s͟ c͟h͟a͟n͟g͟e͟d͟ t͟o͟ y͟e͟t͟i͟s͟t͟i͟c͟

[@Human-cq2py]

He has blocked my channel with 44k subs

[@Human-cq2py]

Remove his comment

[@thisisachannel2974]

You are correct

[@user-dn6kh8my3h]

Correct bro

[@josefdeutz6223]

An welcher Seite der Diode kommt der Widerstand

[@Deebz270]

Neat circuit... But - for a true VU meter, the coloured LED's are in the wrong order. Ideally the order should be something like - green ( < -20 to -7dB), blue (-7 to -2dB), white (Ref - 0dB), yellow (0 to +3dB), red ( >+3dB - 'clipping').

[@daoutbox9884]

Each led colour has their own volt drop dictates the least drop would be last on chain - blue and white draw more current. And so on you get very low voltage red leds ect. May be wrong on something here but right elsewhere.