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Audio amp based on TDA2003

Posted: Thu Mar 31, 2011 5:19 am
by odessa
Hi all...


Me again :D

Ok... heres my amp project !!!

I am amazed by the tiny amount of components needed and also by the quality too... a fantastic little chip...plus it runs fine on a 9v battery too !!
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Done in Eagle
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Ready to be printed and etched
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Finished product
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This one was done using the Toner Transfer method, great for small boards
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Re: Audio amp based on TDA2003

Posted: Thu Mar 31, 2011 7:12 am
by bitfogav
Im impressed!, thats a neat little project.

Do the heat sink get hot or warm at all Jay?

Re: Audio amp based on TDA2003

Posted: Thu Mar 31, 2011 7:55 am
by odessa
Hi Gav,

Thanks :) I must say again I'm amazed at the quality, the vid does it no justice

It did get very hot with a smaller heatsink running off my bench PSU, drew about 1/2 amp at 9v. Running on the little 9v supply with that sink ( stolen from an old laser printer ) it's cold to touch.

Re: Audio amp based on TDA2003

Posted: Thu Mar 31, 2011 5:33 pm
by brad
fantastic project and very nice finished product :D

Re: Audio amp based on TDA2003

Posted: Thu Mar 31, 2011 6:10 pm
by odessa
Thx :)

The next stage is to build another identical one, get a dual gang pot and an Ipod line in/charge desk stand thing.

Then I'll have a stereo ipod dock that will charge too.

I think I'll make the cabinet out of wood and make it look old fashioned ... maybe oak

Re: Audio amp based on TDA2003

Posted: Fri Apr 01, 2011 7:58 am
by brad
A well made wood cabinet can look fantastic!