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Audio input selector

Audio input selector
The design described here enables the selection of up to eight inputs of a prearnplifier without any switch clicks or other noises. It may be used with virtually any preamplifier, provides individual switching of tape and line outputs, and enables monitoring of a tape recording. Morever, it needs relatively few components and is so compact that together with a high quality preamplifier it takes 110 more space than a typrcal car radio/cassette player.
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