DIY:Powerful audio amplifier TDA200

supercool

New Member
You can watch the video first before reading this post.
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For so long i wanted to make an audio amplifier to enjoy my music i used
the well know IC lm386 but it wasn't e enough to power big speakers so i changed the IC to TDA2003 . im going to show you now how to make a nice and powerful amplifier.

Step 1: Tools and parts
For this project you will need the following parts:

10 uf cap

470 uf cap

220ohm resistor

2.2ohm resistor

39 nf

39ohm resistor

1000uf cap

2X 100nf

2X100uf

3 X connectors (see the photo)

TDA2003(The most important part, you can buy it from http://www.kynix.com/Detail/777791/TDA2003A.html)

12v to 18 v adapter and make sure its 2A at least (prefer 3.5A)

for the tools you will need:

soldering iron

PCB

soldering wires

Step 2: Schematics

FIM8YCXIQCKF3ER.MEDIUM.jpg

Here is the chematics in case you couldnt find the 39nf (its hard to find) then you can go with 33nf cap and 47 ohm resistor.

Step 3: Printed bored
FKWIADDIQCKF4T3.MEDIUM.jpg

you can ether use a printed bored or a normal throw hole PCB i will provide better quality in a link later

Step 4: Bending the TDA2003 pins
FH78BFYIQCKEWYU.MEDIUM.jpg

like you have seen in step3 the printed the holes will not match with the TDA2003 that's why you need to carefully bend them a little so they can be in the photo and then solder some left over parts to them (led pings/resistors...) you need to extend the legs so they don't broke (i broke my first tda2003)

Step 5: BE careful&&success!!
F4X7U0HIQCKF5NI.MEDIUM.jpg

If your are going with the PCB type don't rush things and always check again and again before powering so you don't end it with this.!!!
 
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