Synchronized automatic switch (CB9260E)

This control circuit up to 1 kW was found in a 1967 RCA documentation. The components are from that time, and modern equivalents can be used.

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MAX348x and MAX349x RS485 and RS422 Transceiver (COM097E)
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Digital Voltage Selector (CB10948E)
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Rhythmic Light (CB22127E)
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