A quick sketch of how to wire up one of our twin rail Tele bridge pickups ( same wiring for Peacemakers of Twin Loco / T-rail Blazers ) with a 3 position mini toggle switch for both rails in series, single coil cut or both rails in parallel. Please note the toggle switch has to be a 3 position DPDT on-on-on switch for this to work correctly. Don’t use the commonly found on-off-on switches.
The 3 position lever switch used to select the different pickups ( bridge, bridge and neck in parallel, or neck on its won ) is shown as the import version of the 3 way lever switch which has 7 contacts on the bottom edge. The middle contacts used for the hot out signal to the volume control ( that’s the A500k pot in the diagram ) Good wiring practice also say that you should run a wire from the casing of this switch to one of the common ground points, usually the back of one of the pots, just to make sure the earth circuit is complete, along with the ground wire ( not shown ) that runs from the metal bridge of the guitar to common earth.
The tone cap value is not shown as its up to you to play around and experiment with what sounds right to you. Standard would be a 0.47 or 0.33 tone cap but there is no right or wrong here, try a few different values and discover what makes you happy.
