How to make audio level indicator with LM3915 ic - freeform circuit │SimpleCircuits 

Cám ơn các bạn đã xem video, hãy nhấn like và đăng ký kênh để ủng hộ mình nhé ! Video mới nhất- new video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Gxm6FR112sg.html I'm from Vietnam, thank you for watching !. Thank you very much for watching the video. Good day to you!

It is encouraging to see that special purpose chips I had over 30 years ago are still finding use today. I remember there are linear (LM3914), logarithmic (LM3915) and VU (LM3916) versions of these. I recently discovered that inexpensive function generators are still using the ICs I built mine with around 1985 - eg. Exar 2206 and others. I used to have stacks and stacks of Popular Electronics and Radio Electronics magazines. One time dropping off radios at a repair shop around 1985, I asked about an 'Ampzilla" I saw on the shelf with a repair tag. I was told it had been there for years because it was so old - no documentation could be found to aid him with one little component he couldn't recognize. I still had the 1969 edition of R-E with EVERYTHING needed to build that kit. He had it repaired within the week.

I would never be able to work anything this precise, let alone solder it. It would short circuit and burst into flames. Full respect for your craftsmanship.

Простейшая схема. Но, так шикарно и подробно расписан процесс сборки. Автору 10 баллов!!!

I made one of these when I first learned of the LM3915 IC back in 1980. Also, the LM3915 was a major component for steering control in the remote control riding lawnmower I built back in 1981.

Freeform circuits are super neat to look at. Makes me think of an old vacuum tube shortwave radio I took apart years ago. The tubes were mounted and sockets and all of the other components were just point to point soldered between the legs of the tube sockets.

3:10 amazing effect, keep filming this way

Trabalhei como técnico em eletrônica há mais d 20 anos atrás. Esse tipo d circuito era minha brincadeira meu passa tempo, pena q a eletrônica mudou muito, hj sou da área da saúde, foi obrigado a mudar d profissão p não virar um "profissional obsoleto" como tudo nessa área d eletrônica vira um dia. Descartável.

I made one of these in highschool. I then machined a bar of aluminum for the LED'S which I had mounted on a separate PCB and used a ribbon taken from one of my old computers to connect everything so I could put the electronics in a box and have the display on the outside. Worked great 👍. I had plans to make several and make a big display with left and right channels and 5 bars each with filters on each so they would show different frequencies.

Cuando ví la matrícula del IC me invadieron a la mente infinidad de aparatos como grabadoras, consolas, los primero stereos Panasonic y un larguísimo etc con este componente. Es nostálgico y bueno saber que a fechas recientes se siga usando.

That's a work of art! Well done!

once again your steady hand and technique is really impressive

Excellent fitting.. Congratulations..super creativity..

Your devices are works of art!

holy molly ! this is going on my speedometer ! thanks for the tip !

Good production. Slow work meet great help for viewer able to follows the project with confidence. Highly appreciate.

Very good. I like. Now my creativity is growing. Don't get tired of creativity.

Просто и доступно, при этом перфекционизм зашкаливает!!!👍🏻👍🏻👍🏻

Мысль и поделка для меня не новость, Но Большое Уважение за Красивую лаконичную поделку . Красиво-респект!!!. Люблю красивый, аккуратный навесной монтаж.

Wow your creation is amazing. I love it. I've completed a cultivator science project. You see.

Beautiful! Thank you!

Такой аккуратный и красивый монтаж и пайка это сложно очень. Сам всю жизнь с паяльником.

This idea is amazing 🤩 thank you

looks real to me (edit : thank you for heart)

Wow this is wonderful

Show de conhecimento 👏👏

hello again my friend 😃👋 just like for the passion of the drone fpv electronics is one of my passion too 🙂👊👍 can't wait to discover more, good Sunday and good hack see you soon😜✌

Beatiful works. Super!

Nice, it reminds me 1990s. great video

Pretty cool, I was going to buy one

That's look like a magic! Amazing 👏😄

Nice work!

Beautifully done

Really good! Keep on rockin'

Wow! Im litterally going to make this!!

I am never seen before, i realy like this tutorial

He made a wonderful thing and showed it. It was very nice to see...

This is wonderful.

Muito bom!!!

Cool video, thanks :)

Gosto de usar um diodo na entrada e um capacitor com um resistor em paralelo, ligados ao pino 5 do LM3914. Uma outra boa opção também é usar o LN3915 que é logaritmo e o 3914 linear.

Fantastic!

J’apprécie beaucoup ces petits montages

Excelente y maravilloso, te felicito.

Nice design.

This is great!

excellent

Congratulaciones gracias excelente video

So Good 👏👏

Nice!!! good job👏👏👏

ótimo trabalho

Super se bhi upar Excellent friend

Dayum! This exists? I have to try now👍

Mantap lampu nya bang....

Ayooo broo keep goinggg you'll be successful in your talent💗 that's mind blowing haha I will do that to because of you

Nice Work.

Omg this guy is a soldering artist.

It's looking very satisfying

Hello unkle thanks for making a video with led

Vai kya video bnaya hai aapne yar dil khus ho gya...itni safai k saath apne explain kiya hai😍.god bless..apka channel bohot aage tak jae🙏

How neat do you want it to be? Him: Yes.

Nice Work 👍

Art!

Work of art !😂👍🏻🤔

It was great 👍👍👍thanks

Amazing

Tutorial videonya sangat bagus untuk pembelajaran pemula kakak, terimakasih ilmunya untuk praktek sendiri dirumah🙏

Satisfactory, close to ASMR, hahah. Good job !

Ilmu bermanfaat hasil nya mantap👍

Simply amazing electronics ☝️😃☝️

When circuit become an ART

Very good

you are the best ,, thanks

I looooove these free form circuits. Is there somewhere online that I can find more of these projects?

Stadion Żużlowy wybudujj. Z parkingiem 3-4 Piętrowy , na Srodku toru połuż Panele o wymiarach Boiska do Siatkówki.

Imagine a whole dj mixer built like this. This is just one part of the puzzle.

Smart circuit good job.

Awesome circuit! Did you just splice and strip a regular aux cable? Also what is the splitter you use to plug in the aux cord and the cord for the speaker?

posso ligar 12 volts?? posso ligar na saída de qualquer amplificador??

Muito bom. Good

really cool and thanks for the video🤩❤

Extremely satisfied.

Very goood!!

I Like This.

wow. it reminds 80's cassette players

Cắt móng tay của bạn! Họ trông thật khủng khiếp! Như một mớ hỗn độn!

bro awesome!!😍😍

How to use same uv meter for whater leval because we need simply to wering its possible?

Good👌👍

Amazing👍👍😍😍🤩🤩

Adipoli sir

GOOD TICHING KARTE HO AP THANKS 👍✌️👍👌👍👌👍✌️

😲...I like this!

Excellent👍👍👍

awesome..

Wonderful

Impressed ♥️

Can we use a condenser mic for audio input and make it wireless...

Adoro Eletronica

Interesante proyecto