03-01-2017, 04:15 PM
Morzh, it does look like there are two coils.
One coil is the actual moving coil and the second is probably a hum cancelling coil. They are connected in series with the center common connection going to ground. So there are only three external connections.
The question is how to phase the two windings for the desired hum cancellation?
There is a detail of the pickup windings and connections to the associated impedance matching transformer on page 17 of the schematic here:
http://www.nostalgiaair.org/pagesbymodel...013623.pdf
One coil is the actual moving coil and the second is probably a hum cancelling coil. They are connected in series with the center common connection going to ground. So there are only three external connections.
The question is how to phase the two windings for the desired hum cancellation?
There is a detail of the pickup windings and connections to the associated impedance matching transformer on page 17 of the schematic here:
http://www.nostalgiaair.org/pagesbymodel...013623.pdf