Audio amp based on TDA2003

odessa · **Posted:** Thu Mar 31, 2011 5:19 am

Hi all...

Me again

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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File comment: Done in Eagle

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File comment: Ready to be printed and etched

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File comment: Finished product

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File comment: This one was done using the Toner Transfer method, great for small boards

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bitfogav · **Posted:** Thu Mar 31, 2011 7:12 am

Im impressed!, thats a neat little project.

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

odessa · **Posted:** Thu Mar 31, 2011 7:55 am

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.

brad · **Joined:** Fri Mar 26, 2010 10:30 pm **Posts:** 1860

fantastic project and very nice finished product

odessa · **Posted:** Thu Mar 31, 2011 6:10 pm

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

brad · **Joined:** Fri Mar 26, 2010 10:30 pm **Posts:** 1860

A well made wood cabinet can look fantastic!

Audio amp based on TDA2003

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