Hi bisbill....You can rely on Steve's thoughts on that subject.....but anyhow, just for the heck of it I put in "home wiring books" on eBay's search...Up comes 137 items.....two of which are ending in 9-10 hrs today...on Scary Sunday !!! Item # 3533384520 & 3533406843....If A.S. goofed, they will compensate you.....just go back and find/snipe another wiring book...Steve... good to see ya