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Chip Amps Amplifiers based on integrated circuits

recommed op amp
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Old 2nd September 2012, 05:29 PM   #1
sharon1 is offline sharon1
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Default recommed op amp

i want to build a small audio and i am novice in electronic
i found this circuit on the net:
Click the image to open in full size.

it seems pretty small two question:
1)how much speaker WATT it can drive?
2)which op-amp to choose?
3)and of curse what the value of the components?
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Old 2nd September 2012, 06:17 PM   #2
Fast Eddie D is offline Fast Eddie D  United States
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No op amp will drive a speaker.

There are many small amplifiers on a chip that will provide about one watt from a 9 volt source. Radio Shack even sells one.
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Old 2nd September 2012, 06:50 PM   #3
donpetru is offline donpetru  Romania
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TDA2050 or TDA2040 or TDA2030... with some adjustments in the diagram.
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Old 2nd September 2012, 07:03 PM   #4
sharon1 is offline sharon1
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to fast eddie
so for what the output ?
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Old 2nd September 2012, 11:13 PM   #5
Fast Eddie D is offline Fast Eddie D  United States
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Quote:
Originally Posted by sharon1 View Post
to fast eddie
so for what the output ?
Try something like this. Google Image Result for http://www.electronica.ro/audio/images/TDA2030.gif
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