QUOTE(zahri @ Oct 9 2006, 12:25 AM)
Bro, Shah.
Sorry for disturbing ur thread.
Got Some Question on TDA2004 IC.
REcently i was planning to do a portable amp based on the OPamps.
but couldnt find any OPamps and just got myself some TDA2004 kits.
just for the sake of soldering.
everytime i plug in my speaker / headphones. it hums. any ideas what is causing the hums ?
Here are the pics.



bro try to add some damper circuit(filter) on your supply line.Sorry for disturbing ur thread.
Got Some Question on TDA2004 IC.
REcently i was planning to do a portable amp based on the OPamps.
but couldnt find any OPamps and just got myself some TDA2004 kits.
just for the sake of soldering.
everytime i plug in my speaker / headphones. it hums. any ideas what is causing the hums ?
Here are the pics.



a ferrit core and some filtering tools for the supply and source line
will help alot.
anyway, TDA2004 with 15WX2 RMS right?
a good VR for the main valume control will be an added advantage for great crystal clear output.
* i had my STK dual channel amps collecting dust. it was my final year project on Polytech sin year2000.
haha
Aug 28 2007, 10:17 PM

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