OK, some "spoon feeding":
I went to rockauto and looked up 72 Scamp (assume, you didn't bother to tell us), Electrical Switch - Radiator Fan Relay:
HAYDEN Part # 3651, Premium Adjustable Fan Controller Screw-In Type, $28.80
I'll even paste a photo for you. I not only taught you how to fish, I fillet'd and fried it now. Satisfied? :glasses7: