C W Burfle posted:...
Never had a problem with the solenoids becoming magnetized and sticking. The electromagnet would become magnetized. I addressed this by putting a bypass switch in the power supply. When the electromagnet became magnetized, I would run the accessory on AC for a minute or so to demagnetized it.
...
Is the switch labeled "Degauss"? And do you taper the AC down to 0V?