3 watt amp

[keyboarder89]

Hey Everyone

Im new here and would like to know if anyone knows where to find the schematics to a 3 watt mono amplifier. I am making a buzzer for something using a buzzing circuit and a 3 watt 1" speaker (from Parts Express). Any help would be great.

Thanks! 🙂

 

[moamps]

Maybe this:

VELLEMAN MINI 2.5W AUDIO AMP KIT
Part Number 320-215 (from Parts Express)

Regards

 

[keyboarder89]

Thanks moamps,

Do you or anyone else know of where to find the schematics to something like that? Just curious.

Thanks again!

 

[Dirk]

Hi,

Easy schematics can be found in the data sheets of several manufacturers, eg:

http://www.national.com/catalog/AudioProducts.html

Regards, Dirk

 

[keyboarder89]

Thanks Dirk!

That helps alot. 🙂

 

[millwood]

Hi,

Easy schematics can be found in the data sheets of several manufacturers, eg:

http://www.national.com/catalog/AudioProducts.html

Regards, Dirk

has anyone built those u-Pot (LM1971/2/3) based attentuators?