I modified an old phone charger and made it output 30 volts then, I added a voltmeter screen to use it as a tester for measuring any LED or zener diode less than 30 volts.
КОМЕНТАРІ: 779
@Inventor_AW10 місяців тому
Warning: ⚠ ⚠ ⚠ have fun but always remember to be Safe, anything you try is at your own Risk , thank you
@aivonabeywardana421310 місяців тому
Can you use any phone charger on the table?
@Greggpascoe10 місяців тому
@@aivonabeywardana4213 6:44 6:44 Thank you. I have every charger and transformer that ever existed at every voltage. Higher voltage will really help my issues?
@Inventor_AW10 місяців тому
@@gaswirt ❤❤❤
@chrisengland552310 місяців тому
Hmm, a neat little circuit, but I worry about folk who don't know what they're doing messing with mains voltages. At the very least, it should be encased in something to prevent straying fingers touching the 'wrong end'.
@krapkathoru357710 місяців тому
Thank you for the great solution and footage. Please make another video with the installation of components in which a 110v power supply will be used
@d614gakadoug98 місяців тому
These small switchers are invariably flyback types. Significantly raising the output voltage of the supply MAY result in damage to the switch on the high-voltage side. If you are using an AC line voltage well below the allowed maximum you are probably safe. If your line voltage is already near the maximum allowed, you could destroy the switcher. The secondary voltage is "reflected" back to the input side and "stacked" on the supply voltage according to the turns ratio of the so-called transformer when the switch turns off and the energy stored in the input winding is being transferred to the output winding. This is the only time that the inductor really acts as a transformer, and it is a design limitation for a flyback converter. Typically the inductor is designed so there is some safety margin between the sum of the peak DC on the input side and the reflected output voltage and the voltage rating of the switch. If you increase the output voltage it may result in exceeding the maximum allowable voltage across the switch which usually causes it to fail short-circuit. Another potential problem is that many of these switchers use an extra winding on the inductor to power the switcher IC after it initially starts. If the output voltage is set too low the IC may get insufficient voltage to keep it running, resulting in in shutting down, trying to restart, running for a fraction of a second (typically) then shutting down again.
@aldemiralveslima32048 місяців тому
Fantástico! Indispensável na bancada de qualquer profissional da área da eletrônica. Parabéns e obrigado por compartilhar. Um respeito abraço do Brasil 🤗 🇧🇷🙏
@Inventor_AW8 місяців тому
Obrigado
@lucianorobaldo58753 місяці тому
@@Inventor_AW9l😅
@reptilian_leader_276910 місяців тому
Thank you for the useful information, you explained it clearly and made it easy to understand! 👌🏻
@jefersoncarneiro909210 місяців тому
Verdade
@yusufgaridi952310 місяців тому
easy to understand......even to lezard-men like you
@reptilian_leader_276910 місяців тому
@@yusufgaridi9523 now you, I don't understand, on account of the fact you make no sense... You're better off blowing things up instead, like national monuments!
@user-xp7ho2dw3f11 місяців тому
An excellent and necessary device, thank you!!!
@andreystya664410 місяців тому
It will work in low current range (ae no load), because voltage output element is transformer, that zener only for voltage stabilization via feedback circuit.
@anilpatel13983 місяці тому
Very good information, earlier i show one circuit with multimeter after adding some circuit we able to measure led, zener diode , mcpc ect, and there voltage.
@Inventor_AW3 місяці тому
thanks for watching
@turnetblack10 місяців тому
Thanks to the clear and concise way you explain it makes one want to go do it right now
@Inventor_AW10 місяців тому
❤️❤️
@general51049 місяців тому
THAT WAS BEAUTIFUL ! I tried to take an electronics course at a local high school tech night-school, but there weren't but 5 in my class. I was 15 and tge average age was 25 to 40. They cancelled our class & gave us the choice of getting our tuition back or choose another class. I went to MACHINE SHOP. What you did I followed, but didn't understand the WHY's and Where-fores. I understand, pretty much, what each thing does, kind-of, but not together. Please do a video on HOW components do the outcome, together. My expertise was rewires and burn-ups on Locomotives. I let somebody else take care of the solid state stuff. Thanks again fir your content. It was very well done! I'm fixing to SUB.
@Gagibit10 місяців тому
I have analog version made from little tranformer 30V 150mA with current limiter at few mA so i can check the Zener diodes values up to 30V.....but this is AWESOME idea as well...very compact!!! Will do some of this as well for sure!!!
@neiliewheeliebin10 місяців тому
Your idea is good but this is dodgy as hell somebody will get hurt I think you know this
@louf717811 місяців тому
Nice! Looks similar to the TV backlight tester device.
@neculaisirghiuta47589 місяців тому
would this work with a 2 wire (red/black) voltmeter? and how would you alter the circuit in that case?
@Inventor_AW9 місяців тому
2 wire voltmeter won't measure less than 3V
@bobo888bobo3 місяці тому
here multimeters are cheap at harbor freight, etc. Does this do something a regular multimeter can not? It might be more useful to use a case mountable potentiometer that can be easily adjusted and make this into a variable power supply. you could use this voltage display or use a voltmeter ammeter display.
@agahgokdag184511 місяців тому
Thanks to you, I can evaluate our old chargers, thank you very much...
@pauljanssen759410 місяців тому
Depending on voltage drop in wattage is how much heat your have to absorb
@evertonhenrique700910 місяців тому
Very useful to discover the power of any components.
@tomhenkel432810 місяців тому
Do the component values change for 120VAC? I noticed that the unit had a European plug so was probably running on 220VAC @ 50Hz.
@Inventor_AW10 місяців тому
no changes
@mickymannis8 місяців тому
Hi What are the specs of the phone charger you used to build this?
@Inventor_AW8 місяців тому
Chinese charger 2 amp
@albertogomeztobon29645 місяців тому
Saludos desde Medellin muchas gracias por compartirnos tus grandiosas investigaciones
@derkarhu507911 місяців тому
if you just turn the pot around, you would get increasing voltage with clockwise rotation....
@omarflores742110 місяців тому
, 😊😊😊
@ernstlessau820810 місяців тому
Why *you{͡ ಠ ̯͡ಠ}* are telling this deep secret ㋛ ! - _? ?_
@merwynvincent10 місяців тому
@@ernstlessau8208he he!!!
@general51049 місяців тому
careful...folks will be looking for some POT. (Some of that wacky-backie, "smoke it and take a trip and never leave the farm!") Say Variable Resistor or POTentiometer.
@ThePhoenixAscendant10 місяців тому
Bruh, I've got to say this has been one of the best demonstrations on how to desolder components from a PCB. I WILL be referencing this in the future when I move and have time to get into electronics again...
@Inventor_AW10 місяців тому
I wish you a good luck
@tableseven813310 місяців тому
Grand idea and useful point. I at first thought you were going to just make a adjustable power supply, but what you made was very good a testing device for Zener diode mostly or LED diode power value. I am still shocked to see the original power adapter have the possibility of 30 volts. I'm assuming that phone charger is a 5-6 volt power adapter, so that Zener diode had a lot of blocking to do. It is no shock these can still overheat. That voltage drop energy has to go somewhere....
@user-ti2qv3cy2u10 місяців тому
Very interesting noticed
10 місяців тому
The zener is part of the regulation circuit with the opticoupler, it wasn't directly on the output
@tableseven813310 місяців тому
@ Ok, I have seen that on a older circuit years ago, the Zener being the last low end regulator after many voltage dropping resistors and capacitors.
@professorg83838 місяців тому
I'm guessing that if this is a so called "universal input voltage" model, it won't make 30 VDC in the US. But you are right in that if it was designed like that, there's a lot o wasted energy and heating, built into the design. I guess it's easier and makes manufacturing simple, but it is inefficient. I'm in the US with the 120v 60Hz standard and I've seen a lot of issues with this universal input designs. Mostly, underperforming issues. I suppose the heat and efficiency issues are more likely in the 240V world. I hate looking at these kind of videos for a bit and then realizing what they are building was designed for the 240 volt world! I get that there are only about a billion of us using split phase voltage, 60 Hz in the100-125 volt range and that many more people have the 240is volt, 50Hz standard, but realistically, most of those people can't even read!! AW says it doesn't matter, but in many cases it does. Just my two cents, but electricity as distributed, is not universal. The physics works the same no matter where you live. But when you are modifying consumer goods for alternate purposes, one needs to understand that those items really are universal. Modification you make to devices in one country, very well may not work in another,
@GianF1238 місяців тому
@@professorg8383: questo progetto va bene sia per alimentatori per 230 volt sia per 110 volt. La dissipazione è uguale in entrambi i tipi di alimentatore perché il funzionamento è switching.
@wandermiranda31344 місяці тому
essa pecinha azul serve para aumentar e diminuir a voltagem? por que tem um no AVR do meu gerador e eu aumentei e vi que mesmo ele em marcha lenta a energia ficou mais forte, só que não sei se isso pode estragar ele.
@sureyyaak521511 місяців тому
Thank you very much for this very useful device. In my opinion because of the voltmeter power supply is maximum 30 Volts, you don't want to excess 29 Volts. If it is possible to increase the output voltage more than 30 Volts, you can add for example 7812 voltage adjusting device and take + 12 Volts for power supply of voltmeter. Thanks again. 👍
@Inventor_AW11 місяців тому
I just didn't want to strain the transformer
@robertmalinowski54514 місяці тому
Hi I wanted to ask what maximum current output would be possible if I use charger 12v 2.5a for this project?
@Inventor_AW4 місяці тому
As the voltage increases, the current decreases
@robertmalinowski54514 місяці тому
Thank You. Could you tell me if this set could handle 6v 5amp or 3v 10amp?
@Inventor_AW4 місяці тому
no@@robertmalinowski5451
@sivan008111 місяців тому
Is it possible to make a power supply 5V 1.5A with this modification if I have a 2A charger ??
@Inventor_AW11 місяців тому
This modification is for controlling the voltage via feedback
@Vilvaran8 місяців тому
Well at least it's not as deadly as some - but i'd still look at that transformer closer before using it. Also most phone chargers will have a '431 reference of their own, so modifications are either easier or harder, depending on the circuit... Finally, you should never push a transformer winding too far outside it's design voltage, as things get quite inefficient - possibly even dangerous! There is a reason why a relay clicks in the benchtop power supply; it selects three taps on the secondary winding - 0-7V, 7-15V and the final one goes to 30V... Simply looking at transformer action etc. should make it clear as to why it does this (hint: it's to do with 3Amp output current) Here there is a 10K? resistor, to limit the current - so the power handling is actually not bad...
@AmazingSmart-ngth6 місяців тому
WOW!!! Thank you so much for sharing your tips and tricks with all of us and I’m very impressed 😊
@davidzoroastrian59207 місяців тому
Thank you sir! very amazing! But what happened to LED?
@Inventor_AW7 місяців тому
which LED?
@ShahadatHossain-or4is11 місяців тому
Sir please make a video about auto on off timer circuit for any project.
@Inventor_AW11 місяців тому
I will
@Roottech258 місяців тому
how much current is that thing able to output?...
@Inventor_AW8 місяців тому
200mA almost
@tomasmorey12698 місяців тому
I am industrial technician, repairing and installing freeze and cold systems. I´m not into electronics repair, but that looks great tool for you guys. I saw the complete video, very interesting. Thanks for uploading clear and good quality explaining. Best,
@ceciliauribe596011 місяців тому
Muy buen video y excelente explicacion. Muchas Gracias.
@Inventor_AW11 місяців тому
Gracias
@timmilton26388 місяців тому
Great video thanks! Please can you tell me what model of mobile phone charger was used? My old ones have different PCBs internally...
@Inventor_AW8 місяців тому
Chinese charger 5V 2A
@timmilton26388 місяців тому
@@Inventor_AW Thanks 😊
@arsalanzia11 місяців тому
can we use lower voltage and amperage adapter? like old nokia charger voltage around 5v and current around 800mA?
@Inventor_AW11 місяців тому
Provided that it has the same feedback
@arsalanzia11 місяців тому
@@Inventor_AW sorry didn't get what feedback is?
@atifservicecenter11 місяців тому
@@Inventor_AW feedback can only change the voltages according to it's reference, what about the amperage ? I don't know what was the amperage rating in your modified adapter, how it handled the 15v led bulb load 🤔 I've modified a laptop adapter recently, ratings was 19.7v / 5A. But when I increased the voltage amperage goes lower, and when decreasing the voltage it's came to it's full amperage 5A.
@Inventor_AW11 місяців тому
@@atifservicecenter Yes, the voltage rises due to the decrease in the ampere.. But in my project, I used it only to test the zener diode and the LEDs and this does not require a high current
@Inventor_AW11 місяців тому
@@arsalanzia feedback controls the value of the voltage coming out of the transformer.. In the circuit used, the zener diode and the optocoupler represented the feedback
@DIEmicrosoft9 місяців тому
Did you just plug into mains voltage to fiddle with it?
@Inventor_AW9 місяців тому
I had to test like this so that no one would suspect the video...but I know what to do
@ch2o28 місяців тому
nice, but why don't you show the schematics of this diode-replacement (potentiometer circuit) at 2:33 ?
@Inventor_AW8 місяців тому
thanks , We replaced the fixed zenner diode with the variable one
@user-qt4yv4wt5x8 місяців тому
Gostei muito do projeto, só tenho uma, a fonte utilizada foi de 6v 1A,mas esse projeto eu posso utilizar em outras fontes como de 5v, por que é a fonte mais utilizada nos dias de hoje, ou eu tenho que utilizar o mais próximo do seu projeto, porque eu gostei muito e doido para fazer. Obrigado por divulgar o seu ótimo trabalho.
@Inventor_AW8 місяців тому
Eu te desejo sucesso
@WiekingderViking10 місяців тому
So nice to see a fellow who actually knows how to solder!
@Inventor_AW10 місяців тому
thank you bro
@cagatayunlusoy184310 місяців тому
Did you solder anything in place of the led?
@Inventor_AW10 місяців тому
no
@johngarrido276311 місяців тому
Excelente video. Sus videos son muy útiles.
@amrzakaria529011 місяців тому
Good job, Thanks a lot.
@ChrysalideEngineering8 місяців тому
Hi, I never through old electronic stuff and it very often find its use, even just for study of their design and not only electric parts ... Regards Jean-François
@eekee603410 місяців тому
Neat little project. :) The video is easy to watch and listen to. It was good to clearly see how to desolder; I haven't had enough practice at that.
Can you buy this type of device premade? What is it called?
@Inventor_AW10 місяців тому
There is " LED tester ".. but be careful because the output is +300 volts
@robinsattahip23768 місяців тому
Interesting, but I would have picked a better charger to modify. That's one of those dangerous Chinese suicide chargers that doesn't even have a fuse or interference filter, and if CY1 is really a Y-rated capacitor and not just a 1KV cap I'd be surprised. I don't even like having those things around.
@luizfernandolessa188911 місяців тому
Muito bom. Assim que eu tiver o voltímetro e o resistor variável, vou tentar fazer, um pois é muito útil. Saudações do Brasil.
@Inventor_AW11 місяців тому
Obrigado e desejo-lhe sucesso
@dadayzkieh168710 місяців тому
I love it and I want to try but I want to use DIGITAL VOLT METER with AMP. how can I conect?
@Inventor_AW10 місяців тому
The same connections, in addition to connecting the amp wire in series with the load
@dadayzkieh168710 місяців тому
@@Inventor_AW ..ok thanks bro 🥰🥰
@ArshadMehmood-kz6ez7 місяців тому
crt tv fly back nosel which is having high heat resistance, cut the half inch straight part and push on soldering sucker that work well and this way sucker white plastic tip will not damage the pcb. Please make a short vlog on this.
@Inventor_AW7 місяців тому
I will
@Mario-iv5tu8 місяців тому
Grazie! Molto utile per scoprire la tensione di qualsiasi LED.
@riyazshaikh637311 місяців тому
I have a question? Can it modified to use the Multimeter, We will not be spending on extra Voltmeter and Probe and if Yes. Please share the modified schematic. Eu tenho uma pergunta? Pode ser modificado para usar o multímetro, não gastaremos com voltímetro e sonda extras e se sim. Por favor, compartilhe o esquema modificado.
@Inventor_AW11 місяців тому
Yes you can.. It's simple.. Connect the black wire of the multimeter to GND and the red wire to the 10k resistor
@josegeronimodasilva255911 місяців тому
Rapaz, muito bom mesmo. Simples mas eficaz. Parabéns pela excelente ideia. DEUS continue te abençoando.
@Inventor_AW11 місяців тому
Obrigado
@user-ot9jy9tv9u6 місяців тому
Pregunta este proyecto lo puedo utilizar para el funciomiento de un taladro que consume 18 v.? Muchas gracias desde Cartagena Colombia y muchas bendiciones
@Inventor_AW6 місяців тому
No, la corriente a 18 voltios será inferior a 1 amperio.
@giuliorapsant21396 місяців тому
Bonjour votre montage m'intéresse fortement mais pourriez-vous indiquer la marque et modèle du chargeur car j'en ai déjà démonté plusieurs qui n'ont pas du tout la même configuration. Cordialement
@Inventor_AW6 місяців тому
Cette restriction s'applique à tout chargeur doté du même circuit de rétroaction
@tunceru.943011 місяців тому
Is it possible to make this circuit with a powerbank?
@Inventor_AW11 місяців тому
Watch project number 1.. Replace the 9 volt battery with a power bank ukposts.info/have/v-deo/oXllbICujat_ras.html
@Jerm.083 місяці тому
I like how you explain what the name and number of the part your using
@Inventor_AW3 місяці тому
thanks for watching
@nexus44610 місяців тому
I just did this, was testing a smd LED, touched the uninsulated connections to the power supply inlet with my elbow…. Muscle spasmes and my arm shot out…. Punched the cat….. cat went out the window…. Landed on my old school teachers head….she fell over onto my car and broke my door mirror! Thanks! Now I have no door mirror and a vets bill for a cats PTSD fear of heights and a school teacher that now gives my kids bad reports at school parents evenings! All for saving a couple dollars on a ready made unit!
@Inventor_AW10 місяців тому
A wonderful fairy tale .. Thank you for sharing
@user-ug2ns3cx5c5 місяців тому
It's amazing! Thanks a lot!
@agusramdoni348910 місяців тому
Thanks for tutorial yhanks for sharing.. 👍
@user-gf3ck8yl6r2 місяці тому
Здравствуйте.Лазерные диоды с cd rw или другие лазеры, проверяет? Вы, можете дать ответ?
@alexandre779610 місяців тому
Muito bom. Pelo que eu entendi voce usa uma fonte de 6v 1a. Se eu usar uma fonte de 12v 1a também vai dar certo ou preciso fazer alguma mudanca?
@Inventor_AW10 місяців тому
Você não precisará de nenhuma alteração
@jacielrj10 місяців тому
Ferramenta excelente!
@technicallearneronlysaarth209711 місяців тому
Wow it's so awesome. Really I fulfill my all requirement from this project. Thanks to share this knowledgeable video for us. "The Technical Learner" ( Mr.Chandrakant.S, From India.)
@cici815810 місяців тому
Adoro eletrônica parabenizo vc por compartilhar seus conhecimentos 👍
@claudivanmoreira32635 місяців тому
Qual é o objetivo desse tipo ferramenta? Calcular a tensão consumida por determinado componente? No próprio multímetro ja nao é possível fazer isso? Qual a ideia por tras de injetar tensao num componente na placa?
@Inventor_AW5 місяців тому
O multímetro não mede o LED mais de 3 volts
@quipstad10 місяців тому
This is a super cool device that I would have had use for recently! Instead, I took LEDs of differing voltage ratings and a whole bunch of resistors to make them equal brightness. Question: how can this circuit measure the "voltage" of an LED, which obviously can be safely run at different voltages? How does it find the nominal or ideal voltage?
@alexander355410 місяців тому
A semiconductor PN junction has a certain forward voltage, depending on physics and chemistry. If you apply a rising voltage to it in the correct direction, nothing happens until that threshold voltage is reached and then current starts to flow. Raising the voltage will dramatically increase the *current* flowing through the junction, while the voltage across remains fairly constant, until it overheats and dies. Here a 10k resistor is put in series to limit the maximum current. The 30V is high enough to turn the PN junction on, which then remains at its forward voltage, with the remainder dissipated across the resistor. The voltmeter simply measures across the PN junction, showing the forward voltage, which is relatively independent of the current.
@Inventor_AW10 місяців тому
Well explained
@quipstad10 місяців тому
This is an incredible explanation, thank you so much!
@user-te4it8wc3w10 місяців тому
Читаю: "Стабілітрон зі змінною частотою". Яка ще "частота" у стабілітрона? У нього інші параметри - напруга, струм, потужність.
@svetozar16110 місяців тому
а зачем вы украли из немецкого "strom"?
@user-te4it8wc3w10 місяців тому
@@svetozar161 Я за німців не відповідаю. Те, що російською мовою "ручеёк, ток", українською "струмок, струм". Якщо є схожість мов - значить була якась дружба. У нас, у слов'ян, назві місяців схожі. Порівняйте з білоруською мовою, польською. А російські назви місяців схожі на англійську мову. Значить росіяни піндоси.
@azmilerio8810 місяців тому
this is zener diode checker and tester.. briliant...
@robinsattahip23767 місяців тому
I built one, it works well, thank you.
@Inventor_AW7 місяців тому
good
@alessandroricci729410 місяців тому
Forgive my ignorance, but what's the use of the pot if it's to be set to its highest value? Wouldn't be more convenient to use a resistor, was it 500K?
@Inventor_AW10 місяців тому
It was possible for me to do without all this and just put only a 30 volt zenner diode.. but I wanted to communicate the idea to everyone.. Maybe you want 16 volts or 12 volts...
@alessandroricci729410 місяців тому
@@Inventor_AWthanks for your reply, but what I was thinking is what is the point of having that maximum value adjustable: do you get more accuracy if you keep the highest voltage at 16V instead of 30V or I don't know how high it can go. Could I place a pot with external knob so I can adjust it as needed?
@Inventor_AW10 місяців тому
@@alessandroricci7294 Yes, you can use it as a variable voltage source, but the higher the voltage, the lower the ampere
@wilsontrindade71104 місяці тому
Ferramenta incrível. Vou fazer uma tbm. Obrigado
@Inventor_AW4 місяці тому
Boa sorte
@alexandremartins15068 місяців тому
muito bom maravilha de ferramenta amei
@professorg83839 місяців тому
Let me just remind you, that about a billion people do not use 240 volts.
@Inventor_AW8 місяців тому
it doesn't matter
@professorg83838 місяців тому
@@Inventor_AW Depends on how the charger is made. If it is a "universal input" type, it might, but the DC voltage out if the rectifier is going to be lower to start with. That's because the AC output of the transformer is lower. The DC is still enough so the charger still works but the max DC will be lower. You don't give a full schematic so I can only make some assumptions, But I would be surprised if you could get 30VDC output with a with a 120v input. You have some interesting ideas but they may well not work everywhere and might even prove to be hazardous. You could use to improve your disclaimers and also note in your page description, that you use the 240v 50Hz standard.
@dindarpekhas418911 місяців тому
selam. Elimde 20v 9 A laptop şarj aleti var. Bu işlemi yaptığımda 19 v alıyorum burda sıkıntım yok fakat amper çok düşük kalıyor yaklaşık 0,035-0,019 A aralığında çıkış alıyorum. Bu çıkışa 12v 5W lamba taktığımda 7-8 V 0,035 A oluyor çıkış. Bunun sebebi sizce nedir ?Bu işlem de kullandığım potans 20K...
@user-vy2vy7jo6l11 місяців тому
Конденсатор на виході, мікросхема шим-контролера. Якщо шим - краще купить новий блок живлення.
@juliocesarsouzapinto87968 місяців тому
Ola, posso usar um carregador de 5V 500mA? Hy, can I use a 5V 500mA charger?
@Inventor_AW8 місяців тому
Você pode usar qualquer carregador desde que contenha o mesmo feedback
@any1ne11 місяців тому
And the fact that the PWM controller will be powered by more than 6 times the increased voltage does not matter?
@Inventor_AW11 місяців тому
Sir, the voltage has gone up and the ampere has gone down. As you can see, it is only used for testing and has not been overloaded
@geraldoalexandre881810 місяців тому
Acho sensacional esse tipo de recurso eletrônico para recuperar aquilo que está danificado e até melhorar o seu funcionamento. A eletrônica sempre me fascinou desde de criança. Meu pai estudava eletrônica via correios e chegou a montar um rádio. Enfim, o video foi muito interessante.
@Inventor_AW10 місяців тому
Obrigado ❤❤
@davysonbatista8 місяців тому
Meu falecido pai aprendeu pelo instituto Universal Brasileiro, todo mês saia um livro diferente, chegavam partes do circuito todo mês pra montar.
@17albert868 місяців тому
ну радио это круто, но мой дядя собрал компьютер в 88 году, и это делали очень многие советские студенты) называется zx spectrum.l
@nurulaqidah48984 місяці тому
ahirnya ketemu juga tutorial yg saya cari cari terima kasih boss 👍 sukses buat anda 🙏
@raytry6910 місяців тому
I wonder how many times you got shocked by the mains during making this.
@Inventor_AW10 місяців тому
0
@accho85210 місяців тому
I own an UT33C since 2016.
@gundogankazanc92414 місяці тому
i advice you to use a piece of silicon cable isolator for your soldering pump's end pipe. it's original part is normally too rigid plastic and you can buy a lastic cover but they are expensive, whereas 2-3 cm silicon cable cover is almost free and more useful than original one.
@Inventor_AW4 місяці тому
Thanks for the advice.. Yes I know it and you can find it on an old CRT TV high voltage transformer cable
@gundogankazanc92414 місяці тому
@@Inventor_AW i don't know your country's trade conditions but we can find the silicon cables at any electrician shop. for this application (to cover soldering pump edge or mouth) it's ideal just 6 mm outer diameter of cable isolator.
@themusa2009bf7 місяців тому
Que Coisa Realmente fantástica , parabéns ótimo conteúdo, ganhou um inscrito , gosto muito de eletrônica.
@Inventor_AW7 місяців тому
❤❤
@fu1r411 місяців тому
Don't mess around with high voltage ⚡
@Inventor_AW11 місяців тому
Maybe he's just giving advice
@foxmolder640811 місяців тому
it is quite dangerous to OVERCLOCK the fly power supply at 6 V to 30 V with such a power, the reverse voltage on the output diode will grow (up to 250-300v) and it needs to be changed! but what is much more dangerous is the gratifying voltage on the 1 winding and the corresponding impuls on the MOSFET DRAIN inside the PWM CHIP! if it exceeds the limit for them (and this is very likely), then there will be a big EXPLOSION and possibly a fire! but the idea itself is of course interesting, just for the correct and safe release of it, you need to recalculate and rewind the transformer for your new voltage and replace the diode with a corresponding voltage 400-800v ulta fast diode!!!
@ernstlessau820810 місяців тому
... and his mounted Resistor is instead of 10 KΩ = 1 KΩ : brown-black-black x brown ➜ 1-0-0 x 10¹ ≙ 1000 Ω ! And why no one did realize that ! - ? ? { ͡ ๏ ̯͡๏ ?
@mikemir673810 місяців тому
Yes, it can destroy the mosfet, but the reverse voltage on the output diode will be about 60 v, not 250-300v.
@ovidius20003 місяці тому
@@mikemir6738why?TheMaxVoltageIs EfectiveVoltage times 1.41 🤔?
@mikemir67383 місяці тому
@@ovidius2000 On output side U max = 30 V. M1U schematics (wih middle point) : reverse voltage on diode = 2*Umax out. If you have fullbridge rectifier : Urrs = U max out.
@romualdosilva56928 місяців тому
Essa fonte do carregador seria qual celular nokia antigo?!
@Inventor_AW8 місяців тому
Esta ideia funciona com qualquer carregador que contenha o mesmo circuito de feedback
@patomaldonado874110 місяців тому
¿QUE MARCA ES EL CARGADOR? / WHAT BRAND IS THIS CHARGER?
@Inventor_AW10 місяців тому
Es solo un cargador chino.
@ursopolar653510 місяців тому
Well done!
@yuhuachen287110 місяців тому
Thank you for sharing this video. 👍 👍 👍
@Inventor_AW10 місяців тому
❤️❤️
@josebraga704210 місяців тому
Serve para medir todos tipos de capacitor? Substitui o capacimetro?
@Inventor_AW10 місяців тому
Não, não tem nada a ver com capacitores
@santiagoduenas61116 місяців тому
Nice trick, don’t forget to change the output capacitor to one with 30v or over
@Inventor_AW6 місяців тому
I replace it to 50V cap
@ecsolda29984 місяці тому
Obrigado por colocar legenda!
@ahmadsyahmi35110 місяців тому
i dont understand the principle. when u put it to socket u already got voltage. then how come it can measure other voltage.?
@Inventor_AW10 місяців тому
Because there is a 10k resistor connected in series with voltage source, this resistance allows the appropriate voltage to pass , and prevents the rest of the voltage behind it
@ahmadsyahmi35110 місяців тому
@@Inventor_AW i see. tqsm for this explanation
@All-sound-solution3 місяці тому
Super job
@Inventor_AW3 місяці тому
thanks
@sarockpashotan10 місяців тому
Hi sir.if the probs of voltmeter is used the wrong way ( not the right pollarity) will it burn the led when it is being tested? Or it does not matter and nothing will happen?!
@Inventor_AW10 місяців тому
Nothing will happen
@sarockpashotan10 місяців тому
Thanks for replying
@baxus6311 місяців тому
Спасибо за Ваши видео !👍
@Inventor_AW11 місяців тому
Спасибо
@franciscolagumbay413010 місяців тому
Pwd mkahingi schematic diagram ng simpling detector boss..khit sa 2meters distance lng boss.,salamat ng marami.