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Infra-red-controlled noiseless volume control

Infra-red-controlled noiseless volume control
The circuit described in this article is eminently suitable for those who appreciate comfort as well as sound quality. In the circuit two integrated electronic potentiometers are operated by an Re5 infra-red remote controller to provide a volume control that is not only free of crackles and other annoying noises, but is also free of wear and tear. It is intended to be built on a small printed-circuit board that can be conveniently built into almost any existing amplifier.
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