DIY:Powerful Audio Amplifier TDA200




Introduction: DIY:Powerful Audio Amplifier TDA200

About: I'm maker from Tunisia i love electronics and robotics . i hope you can support and help me through subscribing to the channel :

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.

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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


3 X connectors (see the photo)


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

for the tools you will need:

soldering iron


soldering wires

Step 2: Schematics

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

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

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!!

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.!!!

if the link of the discription you will find a link to all files

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    3 Discussions


    3 years ago

    late '80's technology


    Reply 10 months ago

    as long as it works :D and cheap


    Reply 1 year ago

    thanks for letting me know