Be aware that the coil will get VERY hot during use as it controls the fan speed. DO NOT TOUCH! I learned that the hard way! That's why later designs of blower speed control resistors are mounted inside the air box in front of the fan output.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!