At one point he wired his house with speakers. But since speakers can also be used as microphones, he built a control room in his closet, where he could listen in on what was happening in other rooms. One night, when he had his headphones on and was listening in on his parents’ bedroom, his father caught him and angrily demanded that he dismantle the system. He spent many evenings visiting the garage of Larry Lange, the engineer who lived down the street from his old house. Lange eventually gave Jobs the carbon microphone that had fascinated him, and he turned him on to Heathkits, those
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