Quote Originally Posted by John Koehrer View Post
Hi Dave,
Are they solenoids or relays of some sort? I ask because I've never seen a sparking solenoid. Is it closing a contact external to the solenoid?
Well unless I'm mistaken...A relay operates to activate contacts whilst a solenoid moves a cam or rod. As it releases the blades from the their home position, they are solenoids.

Cheers Dave