High Power Amp With TDA7250...

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why not try the lt1166 chip

I have looked at this chip http://www.linear.com/prod/datasheet.html?datasheet=113

I Havent tryed this chip myself but I thing it's better than TDA driver chip.

Hav eany body tryed the LT1166 for high power amp.

Im not looking for high end hifi amp. But a okay amp for PA systems.
I have to pretty low cost since it's going to be build in Africa.
My friend lives there and he need a circuit for high power low cost
amp, easy to build, if posible using mj's outputs or other high power lowcost.

any advice is wellcome. jc dk
 
Ford_V6 - tip

Although u're romanian I'll write u in english so evereyone can understand. You could look at the sites I've posted and u'll find out a better way to build your amplifier with fewer components. I have one just like it and it works and sounds perfect. If u want you could buy a kit already builted by Adelaida (CT). It was really cheap and for those money I'm really satisfied. Check this out: http://www.adelaida.ro/kituri/ad-020v7.pdf . This one delivers 2x200VA/2ohm, 2x150VA/4ohm and about 2x95Va/8ohm, it has Mj11015 and Mj11016 finals and I bought it wiht ~29$. U can also search for the version with the transistors TIP142, 147 (BDW83c-BDW84c) on the same site
( http://www.adelaida.ro/kituri.php ).
 
ford_v6 I think I got it!

Forrd_V6 I think your problem is the supplying voltage. Try to lower it and you should see aprovements. With MJ transistors the voltage should be +_40Vcc and with TIP142/7 +_30, 35max!!!

Hope you solve the problem. If not I'm still looking at your scheme, maybe it's anything else. Succes!
 
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