TDA 2050 amp photo's & mp3

[tasos]

TDA2050 can suck a lot current, I burned a 2040 a year ago using a 15V@500mA ps ..... 

what?why is that?

[Magnus]

Hello,
I'm going to build this power-amp and I have a question:

Is this schematic from page 1 ok or should I change something?

http://www.pbase.com/image/78436347/original.jpg

And the ground: Does the (pedal) preamp-ground have to be connected to the poweramp-ground?


Greetings
Magnus

[J0K3RX]

Hello,
I'm going to build this power-amp and I have a question:

Is this schematic from page 1 ok or should I change something?

http://www.pbase.com/image/78436347/original.jpg

And the ground: Does the (pedal) preamp-ground have to be connected to the poweramp-ground?




Greetings
Magnus

As for the ground question.. Yes, the cable you use to connect them together..  > preamp output to power amp input > That should do it.

If you're gonna put both the preamp and the power amp in the same box then yeah, connect the grounds..

The schematic from the first page should be fine. It's the single supply configuration taken directly from the data sheet with a couple mods as he notes at the bottom of the pic.

Look at the data sheet and go to pages 6 and 7. Page 7 should help you if you need or want to make any changes... There is a board layout on page 6 also but, you may want to modify it or make your own unless you have some big 1000u electrolytic axials you need to find a home for..
http://www.edutek.ltd.uk/Binaries/Datasheets/Linear/TDA2050.pdf

[cab42]

I have built a couple of poweramps from that schematic without any problems (even copying Marty's vero layout from the photos).

Works perfectly and sounds great.

Remember a heatsink on TDA2050. It gets hot!