The Omen (original), the Wicker Man (also original
).
Then there was this movie set in a house with a tall stand up lamp in the attic that controlled all the electrical appliances in the house, and supposedly was posessed by the spirit of the family's dad. And the lamp momentarily had a skull flashed up in it. Being about five at the time I saw it, that was pretty scary! Attysimir, the Evil Escapes I think it was.