I'm building some sort of wood case to arduino mega with LCD, keypad, LED's ...
I also want to build a 9V power supply and I found this circuit on the internet:
|C1||1||2200uF 35V Electrolytic Capacitor|
|C2, C4||2||0.1uF Ceramic Disc Capacitor|
|C3||1||10uF 35V Electrolytic Capacitor|
|D1, D2||2||1N4007 Silicon Diode|
|BR1||1||2A 30V Bridge Rectifier|
|U1||1||LM7809 voltage regulator|
|T1||1||110VAC to 12VDC transformers (1.5A)|
|S1||1||SPST 2 Amp Switch|
|F1||1||2A 250V Fuse and Holder|
I don't have experience building power supplies so do anyone see a problem in this circuit?