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Tell me about it! A freind called for some help. She had a LICENSED electrican working on the entry/stairs/hall/LR light switch panel on a
1920 house. He had taken all the switches out, had all the wires hanging out, could NOT get it back together again, walked out! I taped a 24"x36" sheet of paper over the box and started tracing wires. 2 hours later I discoverd that the box had 3 DIFFERENT wiring systems in it! 1) curent code with NM and hot/neutral/ground 2) knob and tube with switched hot and 3) knob and tube with switched wherever (on the neutral in this case) All of this was legal since it was grandfathered in.I'd sure like a copy of the book but $75 for a used copy seems pretty steep. Is it really THAT good? I do have his smaller book on reserve.