three-level touch control (CB7040E)

Found in Popular Electronics this circuit uses common components to control an incandescent lamp with three levels of intensity

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Binary counter (CB22437E)
This TTL circuit with the 7493 makes the binary count of the pulses sent by a flip-flop with the...
MAX14001 and MAX14002 Analog to Digital Converters (COM193E)
January 2017 - The new MAX14001 and MAX14002 analog to digital converters from Maxim can now be...
Digital Audio Selector (CB18742E)
This circuit provides a visual indication of the selected channel using a 7-segment display. The...