Inside, it was a cathedral of electronics. Glass-epoxy circuit boards populated with discrete transistors and NEC chips. A DC servo motor for each reel. A separate motor for the cam mechanism that operated the pinch rollers and heads. And the heads themselves—amorphous, hard-permalloy, gleaming like fresh mercury under his penlight. They had almost no wear. The machine had been owned by a dentist who only used it to play books on tape.
Arthur smiled. He turned off the Pioneer, unplugged it, and cleaned the heads with isopropyl alcohol and a foam swab. He closed the dust cover. He went upstairs, made a cup of tea, and for the first time in thirty years, did not turn on the radio. pioneer ct-w901r
But the machine had a secret. It took him three days to notice. Inside, it was a cathedral of electronics