NoisyIndividual
Well-known member
You might want to review that.The diagram says 15vac to meter lamps but that diagram has a mistake. You can't have the - side of the bridge and the center tap of the xfmer going to ground. It's a short through the bridge rect.
The center tap should go to ground and the 15vac comes off the blue winding. Then the lights get AC.
You can't ground the centre tap.
The centre tap is the 15vAC supply for the meters, the return for this is either of the secondaries which aren't the centre tap, marked Y or BLK I think.
It is this return that is not designated in the schematic.