Hi i am trying to build a power supply for a project i built.

I need it to output about +-15V and then it goes to voltage regulators...

I made a circuid in the EWB (attached) and it work perfectly in the suimulation (the AC power source imitates the transformer i use), but when i built the circuit the transformer got very hot and i am guessoing it is because i shorted the + of one diode bridge with the - of the second.

I also try to use middle annex (?) transformer and it gives me the same problem....

What should i do ?

Thanxxxx

Your circuit wrong,make a shortcut.
Here is two solutions: