The "BEAM Stepper" motor author Duane C Johnson and Wilf Rigter have beendone by following: it was taken chip dip socket with 74AC240 and added one more 74AC240 . The it is possible to use stepper motor from floppy 12 ohms. The "BEAM Stepper" rotates CD disc.
Construction called "dead beetle" with Assembly is done the microchip socket.
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