Decibel stepper

Decibel stepper, The stepper presented here makes use of nine positions of a 12-position rotary switch. It is, of course, possible to add the three steps. As usual, the amplification factors are arrived at by connecting a number of resistors in series in the feedback circuit. The resistors used here are for the E-96 series,[…]

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SCSI active termination

The SCSI bus (small computer systems interface) is a high-speed bi-directional parallel bus used mainly for connecting ‘intelligent’ peripheral devices to a CPU. The bus is the de facto standard in the Apple computer environment, where it is used to connect devices like CD-ROM readers, scanners, and internal as well as hard disks. The SCSI[…]

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