design help

[ellsworth]

sup peeps.. im still a newbie when in comes to pcb designing and now i've come up with a project...just a very simple one..

im done making my design but i really doubt that there is still wrong with it..

im doing a 9v output power supply with a transformer that is
220v 12-0-12.. i cant attached my schematics since my copy is in my notes and i cant scan it cuz my scanner is busted..

heres the design:

i really really need your advice and corrections on this one... tHANx :roll:

 

[pike]

i believe you have to connect the output 0v to the transformer centre-tap or 0v

 

[Sebi]

If the trafo is center-tapped, no need bridge rectifier, just two diodes.

 

[ellsworth]

ok.. im gonna try ur advice.. and heres my schematics on the design if ever there are more corrections needed... THANX

 

[Sebi]

Here is the correction...
But in C4 position no need 1000uF, 10uF quite enough.

 

[ellsworth]

thanx a bunch