HiLoTron innards pics

[David Schwab]

Can you tell, please, the magnet orientation, because, i think, if it is noth upside, slugs will be south.... or not? and is it good or bad... or nothing... thanks.

As long as both pickups have the same magnet orientation vs. coil polarity, it doesn't matter. So make them both the same, or since they are both single coils, one can have the opposite polarity, along with opposite coil polarity, and they will hum cancel when both on.