For experimenting with digital electronics use +5 V
For experimenting with analogl electronics use +12 V
Circuit Description :
The Regulated circuit in figure1 consist IC Regulator 7812 and 7805. this circuit which is useful when experimenting with digital electronics we can use 5V and 12V for analog circuit .which output current of this circuit @1A .The Input voltage from the 220/230 VAC power line
Regulated +12v,+5v,1.0A 
