6 Transistors no IC spectrum analyzer LED circuit DIY
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- Опубликовано: 17 ноя 2022
- This video shows You how to build a simple Spectrum analyzer circuit using 6 transistors and a few other basic electronic components.
No ICs are required!
This is a great DIY project for electronics beginners who want to learn more about any electronic circuits.
This circuit using 6 small NPN Transistors, 3 Transistors as the preamp and also as the Low Pass Filter (LPF), Band Pass Filter (BPF), and High Pass Filter (HPF). So basically on each band is the circuit of a VU METER LED with audio frequency filters.
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Component list:
- 6 pcs NPN transistors; C1815 or C945, or You can use any other NPN transistor (but You have to pay attention into EBC pins position).
- 36 pcs 3v LED bulbs.
- 6 pcs Elco 10uF at least 16v.
- 39 pcs 1N4148 Diodes.
- 36 pcs 820 ohm Resistors.
- etc.
#diy
#electronic
#led 
Наука
Moristo Lekka ist SUPER!!👍👍.
Janusz**Krakow**Poland
Thanks Janusz.
Excellent work god bless you 🌹🌹🌹❤️❤️🧡🧡💚💚💚
God bless you too.
WOW, anda sangat kreatif dan amazing bang, semoga semakin banyak orang tercerahkan dengan ide-ide abang yang sangat bagus dan super kreatif 👍👍👍 salam sukses salam solder panas dari jawa timur
👍👍 salam sukses salam solder panas juga masbro.
Menakjubkan. Semoga anda selalu diberikan kesehatan dan dilancarkan rezkinya... Aamiin
Terima kasih, sama-sama mas bro Semoga anda selalu diberikan kesehatan dan dilancarkan rezkinya... Aamiin
Very good
Thank you so much.
Excellent
Thanks
Good jab ❤
What is jab ❤?
Nice job sir❤❤❤
Thank you.
Of all the VU meters you have made, I like this one the most. Very cheap but equally good and most sensitive VU meter. And also good looking.
Sir I have a little question, if I wana add more led lines so what is the value of resistor and NP capacitor we need in each next line???
Thank you for your appreciation, it's still a secret for future videos, sorry to say.
@@moristo SIRRIN SENİN OLSUN MEZARA KADAR SIRRINI GÖTÜR BİRDE KANALA ABONE OL DİYORSUN NE ŞEMA YOK
Kendinize bir şema çizmek için tembel olmayın.
Very well explained and best vu meter ever on RUclips, but sir, it is very sensitive even in very low volume, please help me to make it a little less sensitive.please advise me.Thank you.
You can add resistor that series into the input.
Thank you very much.
YAW
Hello, I have a question regarding the project, how should I do it if I want to increase 2 more rows, are the values of the capacitors and resistors decreased? If you answer me I would appreciate it very much.😊
The answer will be in my future video.
Easy and cheap 3 band vu meter so we can increase more bands by using different resistors
Add more Band Pass Filter.
Hi is there any difference if i use ceramic capacitor for the 2.2nf and 33 nf capacitor?
You can use mylar or ceramic capacitors with the same value on each.
high , mid,, low filter un vu meter nice..
Yes, you are right.
If I use 5 led in per frequency channel what I have to change? The input signal resistor to higher value?
You can try that without changing the values any other components first.
bisakah pakai vu meter model ic lm? bagaimana penyambungan kapasitor inputnya?
Bisa om, cuma ribet menjelaskannya dalam teks pengetikan begini, syulit om.
wow
Waw thank you for watching.
Hello sir, what cable do you use to give the frequency or the sound, I would appreciate it if you answer me.
That cable often using as connecting cable on a Head tape cassette.
That's an audio coaxial cables.
Hello, I have a project to design a VU meter using Lowpass, Bandpass, High pass filters. Can you please share the circuit diagram and the other details regarding this. Big help.
This is just my research experiment result, till today the schematic diagram just still in my brain.
So if you really needed the circuit diagram you can draw it your self while watching and use play/pause button to catch something.
Hi can i use led strip instead?
LED strip it's a different circuit.
Make a 14 band analyser
Hopefully n the futures.
Sir plz explain circuit how it works
I'm so sorry, my channel is not about How it works, my channel is about How to make.
Good circuit diagram please
You can draw it yourself because I don't have it yet.
What is the number of copper you used?
Copper wire diameter is not critically, as long as the copper wire can be shaped like in the video.
modo Dios
Thank you.
Led luminecense unstable..
Yeah, that's unstable LED luminance which will make the circuit creator feel happy and enthusiastic.
Can i know the watts of the resistors?
You can use at least 1/8 watt.
@@moristo thanks im currently making one 😆
I shaped the led into circle
wow, good.
Haw to ues 3led 1 resistar
It depends on the LED power that you are will using.
@@moristo 3 v led
LED power (watt).
good but unfortunately there is no project diagram
I push you to watch and draw the circuit diagram yourself.
Wong Indonesia tho sampean... wkwkwkwkwk.
SIRRIN SENİN OLSUN MEZARA KADAR SIRRINI GÖTÜR BİRDE KANALA ABONE OL DİYORSUN NE ŞEMA YOK
LÜTFEN ŞEMA KENDİNİZ ÇİZİN
Not having schematics makes you lazy. Writing them down is how most people learn. Even before they gather the parts
Therefore if someone wants to learn more deeply, please learn to draw the schematic.
I'm not forbidding people to draw the schematic.