Help testing a EBMM triple coil

This would be a good place to start.

The finish of the dummy coil and south coil are tied together with the purple wire, and grounded through the bare wire. Red is north coil start, Green is north coil finish. White is south coil start, and Black is dummy coil start.

With a DPDT on/on switch, this would put the north and south coil in series, and the north and dummy coil in parallel when split



This would put your north and south coil in parallel, and your your north and dummy coil in parallel when split



I am not sure what type of switch you would need for series/split/parallel switching options, I am thinking maybe an on/on/on 4pdt switch would be what you would need

 

This should work for Parallel/Split/Series wiring with a switch like this one


I am pretty sure this is right, someone correct me if its wrong.

 

Just to test resistance, to test the north coil, measure resistance across the green and red wire. To test the south coil, measure across the white and bare wire, to test the dummy coil, measure across the bare and black wire. You can also twist the white and green wire together and measure resistance across the bare and red wire to check resistance of the pickup in series.

 

How about a rotary switch?

 

It would work, but IMHO rotary switches are not very intuitive to use. An on/on/on toggle is much easier to navigate on the fly than a rotary