I was looking at a 12 volt regulated power supply at Dick Smith Electronics cat. number M9935 @for a regen radio I'm planning on building 1-12af6.htm) but the AU$24 is a bit too high for my liking. I was thinking of using a center tapped transformer, 6.3-0-6.3V @ 500mA, in series with a 1.3 watt zener diode, I need help with obtaining 12.6 volts from a center tapped transformer, I never had to do it before. I thought that the two positive primary leads were connected, I don't want to blow the transformer if this isn't the case.
Any help appreciated,
Transformer is M2853, and zener diode is Z3543 @