A very Clean and great sounding 12V Battery Powered Mini Boombox

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csom

csom

Member
Joined 2012
This is my on-going project.
A portable Battery operated mini Boombox using TA8210, a BTL amp made by Toshiba.
I am very pleasantly surprised with its sound quality. I tested the amp with big full range speakers too and it sounded great there too. Very nice , clean, detailed and rich sound.

I followed the PCB layout from construyasuvideorockola.com
Read more here: http://construyasuvideorockola.com/proyect_amp_40w.php

The power amplifier PCB Layout was correct but the 3 band equaliser circuit has a problem. I fixed that using a pair of 1uf non polar cap between the Op-amp output and volume control. However, this equaliser operates with 12 volt too and a perfect companion for any BoomBox.
Read more:http://construyasuvideorockola.com/proyect_pre_eq_simple.php

If any member of construyasuvideorockola.com is reading my post here, please fix your circuits. I found at least 3 problems in your hard works in various projects that I had attempted earlier and some of your crucial and very basic mistakes were solved with the help of kind and experienced diyaudio members and a moderator here. This can be seriously frustrating to a newcomer who wants to attempt your projects. I don't know Spanish otherwise I would have informed you about the mistakes found in your circuits.

But you are doing a great and praiseworthy job.
So a big thank you, construyasuvideorockola.com.

The huge LED spectrum analyser was made with the reference from podsviceni.com. So I thank them too.

I salvaged the speakers from an old out of order TV set.

I just attached the tiny speakers to a front panel made with a 6mm plywood plank. I am testing the sound of the open-baffle design. :p Not bad.

I sincerely value your experienced words/ suggestion to make this project a better one.
Thank you. :)
 

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Last edited:
csom

csom

Member
Joined 2012
patnaik_kottakki said:
Sir, I am new here. Your project inspired me..
Click to expand...
Welcome to the forum and wish you a very happy journey here along with us.
Thank you for your comment.


patnaik_kottakki said:
I tried the link which you posted above for amp and pre-amp, but there are only photos of ready built pcbs. So kindly please post the layout of preamp and power amp here or you can mail me sir. Thank s in advance.
Click to expand...

To get the project files of the spectrum analyser,
1. download the rar files from the description of the video of zarovka29
"10 band audio spectrum analyzer with 400 LED FullHD "

10 band audio spectrum analyzer with 400 LED FullHD - YouTube

and the direct download link is there below
http://podsviceni.com/spectrum_analyzer.rar


2. Use any unzipping software you like. I use 7zip it is a free software.

3. Once unzipped you can open the .sch ( the schematic file) and .pcb file ( the pcb layout design) with the free and light version of Cadsoft Eagle)
___________________________________
To get the Boombox files:
Go to www.construyasuvideorockola.com and download the pdf files.
You can use google translator to translate the page.
Amplificador de 40w con ta8210

and the direct download of the pdf files:
http://construyasuvideorockola.com/downloads/ta8210_flat.pdf
Then just use the toner transfer method.

Hope this helps.
All the best for your project. :)
 
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