![Ron Mattino](/img/default-banner.jpg)
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Ron Mattino
Russia
Приєднався 4 бер 2022
This channel is dedicated to electronics, programming and engineering.
Why does an LED need a RESISTOR? The Simplest Explanation.
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0:00 Relation between Voltage and Current
1:27 LED vs BULB Experiment
2:59 LED VI curve
3:36 LED vs LED Experiment
4:37 Why does an LED need a resistor in series?
5:19 Parallel vs Serial connection of LEDs
6:00 Ron Mattino. Thanks for watching! :)
BTC:384FUkevJsceKXQFnUpKtdRiNAHtRTn7SD
ETH: 0x20ac0fc9e6c1f1d0e15f20e9fb09fdadd1f2f5cd
0:00 Relation between Voltage and Current
1:27 LED vs BULB Experiment
2:59 LED VI curve
3:36 LED vs LED Experiment
4:37 Why does an LED need a resistor in series?
5:19 Parallel vs Serial connection of LEDs
6:00 Ron Mattino. Thanks for watching! :)
Переглядів: 992
Відео
USB over UTP cable: Testing Voltage Drop and Transfer Speed.
Переглядів 1,3 тис.2 місяці тому
USB over UTP cable: Testing Voltage Drop and Transfer Speed.
Electronics for BEGINNERS: Switch, Relay, Resistor, Diode, Capacitor, Transformer, Transistor, SCR
Переглядів 2 тис.10 місяців тому
Electronics for BEGINNERS: Switch, Relay, Resistor, Diode, Capacitor, Transformer, Transistor, SCR
USB connection over an ETHERNET cable? Making your own 7 meters long USB extender cable from scrap.
Переглядів 35 тис.10 місяців тому
USB connection over an ETHERNET cable? Making your own 7 meters long USB extender cable from scrap.
Can you build a USB wall charger from scrap? Let's do it!
Переглядів 1,4 тис.10 місяців тому
Can you build a USB wall charger from scrap? Let's do it!
Do you know how to FAST CHARGE your phone? Fast charging and how it works.
Переглядів 3,2 тис.10 місяців тому
Do you know how to FAST CHARGE your phone? Fast charging and how it works.
7 Simple Arduino Projects for Beginners
Переглядів 2 тис.11 місяців тому
7 Simple Arduino Projects for Beginners
How does the Hall Effect Sensor work? Building a Levitron using the Hall Effect Sensor.
Переглядів 1,5 тис.11 місяців тому
How does the Hall Effect Sensor work? Building a Levitron using the Hall Effect Sensor.
Arduino for BEGINNERS! Set up the BOARD and Write your VERY first sketch in 5 minutes!
Переглядів 1,1 тис.11 місяців тому
Arduino for BEGINNERS! Set up the BOARD and Write your VERY first sketch in 5 minutes!
How does NE555 work? Bistable, Monostable, Astable, with schematic examples. The COMPLETE Guide.
Переглядів 6 тис.Рік тому
How does NE555 work? Bistable, Monostable, Astable, with schematic examples. The COMPLETE Guide.
How to use a Multimeter? The ULTIMATE Guide you've been looking for!
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How to use a Multimeter? The ULTIMATE Guide you've been looking for!
How do computers work? CPU, ROM, RAM, address bus, data bus, control bus, address decoding.
Переглядів 90 тис.Рік тому
How do computers work? CPU, ROM, RAM, address bus, data bus, control bus, address decoding.
Resistor, Capacitor, Diode, Transformer, Inductor, Transistor, Thyristor - IN A NUTSHELL.
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Resistor, Capacitor, Diode, Transformer, Inductor, Transistor, Thyristor - IN A NUTSHELL.
Mastering SOLDERING. TOP 10 mistakes YOU make as a beginner!
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Mastering SOLDERING. TOP 10 mistakes YOU make as a beginner!
How to power any LED and NOT turn it to smoke?
Переглядів 3,2 тис.Рік тому
How to power any LED and NOT turn it to smoke?
SEVEN hidden WINDOWS features that YOU are NOT AWARE of!
Переглядів 3 тис.Рік тому
SEVEN hidden WINDOWS features that YOU are NOT AWARE of!
7 MOST Notable Hackers of All time. Kevin Mitnick, Albert Gonzalez, Gary McKinnon, Julian Assange.
Переглядів 714Рік тому
7 MOST Notable Hackers of All time. Kevin Mitnick, Albert Gonzalez, Gary McKinnon, Julian Assange.
Windows Command Prompt Secrets YOU did NOT know!
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Windows Command Prompt Secrets YOU did NOT know!
Is your phone being TAPPED? Find out NOW - in 3 simple steps!
Переглядів 2,8 тис.Рік тому
Is your phone being TAPPED? Find out NOW - in 3 simple steps!
What is a Bruteforce attack? Youtube Workshop.
Переглядів 294Рік тому
What is a Bruteforce attack? UA-cam Workshop.
ENCRYPTION -- How does it work? Explained in VERY simple terms.
Переглядів 818Рік тому
ENCRYPTION How does it work? Explained in VERY simple terms.
THIS IS HOW Messenger App in YOUR phone can be easily HACKED. Man-In-The-Middle Attack EXPLAINED.
Переглядів 445Рік тому
THIS IS HOW Messenger App in YOUR phone can be easily HACKED. Man-In-The-Middle Attack EXPLAINED.
Trojans, AutoRun, USB Jackers, DDoS, Worms, Keyloggers, Botnets, Cryptojackers, Ransomware EXPLAINED
Переглядів 893Рік тому
Trojans, AutoRun, USB Jackers, DDoS, Worms, Keyloggers, Botnets, Cryptojackers, Ransomware EXPLAINED
The famous "Wear Sunscreen" Commencement Speech. What's really behind it?
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The famous "Wear Sunscreen" Commencement Speech. What's really behind it?
How to spot a PROFESSIONAL TROLL? Tweaking social media algorithms to manipulate users biases.
Переглядів 329Рік тому
How to spot a PROFESSIONAL TROLL? Tweaking social media algorithms to manipulate users biases.
How to keep your CRYPTO safe? Hackers in search of a secret formula.
Переглядів 226Рік тому
How to keep your CRYPTO safe? Hackers in search of a secret formula.
So educative and amazing
Reverse polarity protection is neat. Put that in my notes
Nice video
I missed the transformer.
Absolutely amazing
Transistor value?
What are you proving.. if you overload a power supply it is not working within spec.. shocking discover
I'm trying to prove that some PSUs actually produce a lower current than specified on the label, and some, on the contrary, produce more current failing to limit it (although they are supposed to).
@@RonMattino but than make the load somewhat in the range.. maybe use a variable load and see what the limit is.. now you just overload most of them
Is there no current and voltage drop using diodes
First is 3x18=54wh more Second is 3x14.4=43.3wh less
does a resistor limit current when in series with the load? current through the resistor n load is the same but the voltage is dropped accross the resistor hence the dimming
I did this to one of my old phone but ended up with white lines on the screen 😅
That sound will make vido more power full❤
Is that also how tunnel diodes are used as oscillator ?
Yes, exactly.
What do you mean the reset vector is at address 0? Is it not at 4GB - 16 bytes?
We are talking about 8 bit CPUs here. Both the i8080 and Z80 have reset pointing at address 0.
AC one Line Liv 2 Signal 60+60- HZ PULSES 120vac..Amp Watt DC
I wish I had found an Arabic translation of this important lesson
You can try UA-cam's automatic translator. Just enable subtitles and choose your language.
Why just now, i need this? Also, can I use dc 4.5 volts from transformer outlet provided that I lower the amperage?
I guess 4.5 volts would probably be okay. Actually, the amperage should not be too low because the phone will need it when activating the transmitter. If it's too low the mobile may fail to start.
Magnificent great.🎉
Many thanks
I am willing to bet there is some kind of way to use this in a fuzz guitar pedal.. If I only knew how.
A guitar fuzz pedal is simply an amplifier. The waveform is amplified massively, maybe 100 times or more, so it would TRY to go way beyond the power supply of the pedal. At this point, the wave will "clip", anything higher than that limit will just be cut straight off, which is the source of the fuzz sound, turning those nice smooth sine waves from your guitar into square waves. A commercial fuzz pedal will probably not do this, it will use fancier electronics, so you can change how much the wave is modified and get a range of effects (for your money). If you look around, there will be "simple fuzz circuits" online and quite possibly in 1970s electronics magazines!
@neilbarnett3046 Thanks. I know what a fuzz circuit looks like, only because I saw some videos made by Josh Scott. But I didn't know the theory behind a transistor. 👍
Digital fuzz pedals also have cabinet/mic modeler that make them sound really good.
Redstone clock
No voltage supplied to the base ?
Baseless claim
No, he's relying on the junction to break down, the transistor is not being used as a transistor at all. A reverse-biased EB junction on a small transistor like that can only stand a few volts. I read the ONsemi spec sheet for 2N2222 and it said 6V, a lot less than the CB junction maximum rating, which is quoted as 75V.
6V is typical for most NPN transistors, actually, this is why 5v was chosen as standard supply voltage for TTL chips.
Thank your for your best explanation. I need to know with exemples pratic how microprocessor when he boot can acces to rom, load first instruction execute it after reset ing. I need to know exactly the boot process in the microprocessor registers how can it boot to work after power supplay
Hello i appreciate your explication. That is very good and interesting. So, i need explication of some questions because i am student 1. Explain me how to make , concept a simple control unit with sequencer that execute multi cycle instruction. I need an exemple pratic with blocs and wires and exemple of execution load from mem or store with incréments and loader second instruction...
5v dc act same as baising voltage us in audio amplifier. Baising voltage shift the voltage lavel. C1 stop dc to rech ac supply. And c2 fillter out dc and we get ac at output.
Thanks
I now also understand it better... thank you very much sir
Блять это майор том или хайдев? Голос знакомый пздц
that was damn understandable. Very good job there!
this is incrible😲
thx sir.😅
Finally now I can use my old 5v laptop
Can I apply this for speed control?
Thank you for this video.
Not quite as you describe.
This should be showcased in schools in the official manuals 😊👍
But we know that LEDs have higher voltage drop so the rotation is slower with leds
Sure. But the idea was simply to demonstrate how current flows within the bridge rectifier.
Thank you for the showcase with the LED’s. Now I understand the bridge rectifier better, Thank you:)
I had to look for days on UA-cam to find out a cheep solution to my cable problem. Is it possible to run 1 USB to 2 usb C's with this method?
All I can say, so far it won't work for USB3, unless you want to use the Type-C connection for USB2.0.
Wrapping a tin foil hat around your head has the exact same effect.
Yep, sort of. ;)
Wow. This is better than any course I've taken. The visualizations are extremely helpful
Anyone that thinks this much is Electronics Engineering after watching this short. Think Again! Great Video BTW.
i cringe every time you say master and slave
😊😊
Use Host and Device instead. :)
I believe the key purpose is not the emission of the high frequencies to the air, but rather transferring by the line... the ferrite core elliminates any hf entering the device from the line snd/or exitting of hf from device to the line
Not really. If you remove the ferrite core from the cable (some are easily removable by design) your device will function fine.
Nice work !!!!
I really like your technique for finding the positive, test for the noise filtering capacitors as they will show as a temporary short as they charge by the ohm meter 😉
I don't know what to say...Ron looks like a logger. He actually looks like a fired employee from an unlicensed logging company that illegally clears up forests.
Can I use any diode?
I used a regular diode with forward voltage 0.7v
That's why we should never use cheap (chn*) batteries. My previous comment got deltd.. automatically.
It's still there
That's why we should never use cheap xhines batteries.
For what the M2 key is?
One mosfet switch is for charging, another mosfet switch is for discharging (work mode).
@@RonMattino But they are in series 😳