plz tel me the circuit for the power supply for +12v,-12v,+5v and -5v

 

What amperage?

If noise isn't important you might be able to use a PC power supply.

 

That would be an easy answer.. an ATX supply should do ya.

 

Wow, that was quick.

 

well...what about voltage divider circuit...can't it also be used to generate both positive and negative voltages...