Li-ion charger circuit using 1 transistor kzfaq.info/get/bejne/erWUndt3tcquY2w.html

Thanks for circuits!

Excelent. Thanks so much. From Colombia. Regards.!

I found What I was looking for. Thank you :)

ты такой молодец!

Cool, very interesting...

Excelente!!!

you were creative

Thank you bro

Outstanding excellent video thankyou very much !:-)

Very good 🤗🤗🤗

nice idea, interesting

*Nice video*

Very good project 👍👍

Great sir 👍

I’ve never bought any electronic components or ICs online and have only got my circuit boards from dumpsters . I don’t have any of the 2pin IR receiver LEDs but I have plenty of the 3pin kind in this video plus several that are a black box with a round bubble that sticks out, ones like that but the bubble extends down to the base, and I have one that is round like an LED but it had a smooth flat service on the side. I’ve got all mine from TVs and their remotes, cable boxes, and I have one that is a black rectangular square that has 2 small round bowl shapes in the top with a divider. And I also have a fancy one thT came out of a keurig espresso machine and that has 3 LED looking things where 2 are kind of tilted towards eachother, along with another smaller one with only 2 led eyes. I’ve scoured my circuit boards and have not located a bc547, but have maybe a half dozen 2n2222-to92 transistors. I got several buzzers to choose from As welll, and of course resisters and capacitors are plentiful. Will I be able to make one of these if I reverse the pins on a 2n2222 from a bc547? Also is there any 8dip or larger pin configuration ics I can use that contain the same specs of a bc547? Sorry if I sound like a noob, well it’s because I am.😁

very good

Very Good..!!!

Thanks sir

Magnífico 🧐👍👍👍👍👍

Very good👌👌👌👌

I like. Bagus

Nice

Thanks

This actually works! Thank you!

Good morning I am writing to you from Germany, your videos are very interesting and very good, my question is, instead of putting a buser you could put a vibrator micro motor

Muito bom!!!

Could you do a radio some time? Especially a super regenerative FM circuit ! Please!! Thanks

Very good,friend! Thks...

Super

The world's best

hello .. thank you for your wonderful work.. My information is that the out signal is negative, so how we applied it to the positive side of capacitor and to the base of Transistor npn?

First !! awesome

Nice project

such a nice music what is its name?

what if i want the beep only when some one get close ? how can i do that?

Good work. But weak communication try to better

Hello Tech Ideas, I have followed your instructions except where you wireup a buzzer, I'm trying to wire upa dc 3v music box, the led I wired works fine but when I try to add the music it dont work. Any ideas please. Thank you

Is this comes under EEE or ECE engineering

Hello I thank you very much for your videos are great I would like that please help me with a sircuito I want to make an investor to work with the battery of my motorcycle that is 12v to 120, I would appreciate it

Does it works in sunlight 😮😊

How to use 2 pin ir receiver or phototransistor in this circuit

Buenos días te escribo desde Alemania, tus videos son muy interesantes y muy buenos, mi pregunta es, en lugar de poner un buser se podría poner un micro motor vibrador de 1.3v? Espero que usted me pueda responder y si es posible hacer un tutorial con un micro motor a vibrador, gracias y muchos éxitos en tus videos

EXCELENTE, PERO CON 3 VOLTS APENAS ZUMBA, QUE MODIFICACIONES PUEDO HACER PARA INSTALARLO A 10 O 12 VOLTS. GRACIAS.

Okay👍

Great job. Can this circuit be used for purposes other than alarming ? Like controling a DC motor ?

I want to make an obstacle avoiding car. Can i run motor on this circuit?

It can work with motor?

How do i contact with you ? I need a get a customize sensor package if you could..Plz respond its important

hi, if i not short the remote, the led & buzzer will off when i connect it to the batrries?

ya saman bazaar k kis jaga pir mealy ga sir!

Nice video first you stop music and. Properly explain thanks

Lindo. Cuál es la distancia máxima que tiene?

1:30 skip ad

Can we make the same without transister

Why doesn't the circuit work when a continuously lit infrared LED illuminates the receiver? Why is it necessary to flash at some arbitrary frequency? (Which the old remote makes here.)

Please make a fire sencor with this it sencor

Once someone crosses the path, the buzzer will just sound for 1sec. How can I keep the buzzer sounding continuously if signal from the remote is broken? plz help

How to convert DC 48 volt 20 Ah to DC 12 volt pls

Can we use a tv remote

Can we use 100ohm on the place of 150 ohm

Working distance limit??

project me Capacitor 63 v 10 uf cal sakta hai kya

Kitne miter Tak Kam karta h

รีวิวgy-49

Ye tar kis chiz ki h

Sir why capacitor is connected?

Can use TV remote please help

Why are there two resistors in the circuit diagram, but only one resistor is used in the circuit you created??? 🤔🤔🤔 Resistance 220 Ω Resistance 150 Ω

Is it tsop4138

Shorting the remote didn't work for me.

Can it work in sunlight, or it is affected by sunlight or not

In your circuit there is only one resistor of 150 ohms. But in your diagram there are 2 resistors. Why?

No entendi lo ultimo

It is not working i made it but jst led blink when i press the rmote button

This is true?

FUN FACT THE DURATION OF THIS VIDEO IS 547 GOT IT? BC547

अगर आप हिन्दी में जवाब देतो मेहरबानी, मेने ये सर्किट बनाइ है, मगर 4 से 5 सेकंड के बाद led स्लोली स्लोली ओन रहती है और। Long distance, पर ब्रजर भी स्लोली स्लोली बीप करता है, प्लीज कोई सोल्युशन बताए,

BC547 ou BC557?????????????????

M

I want to connect it with RALLY

abe sale voice ???

Great sir 👍