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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Delayed pulse generator (CB8523E)
Found in 90's Electronic Engineering, this circuit produces a pulse with a delay that depends on R3...
Voltage Controlled Amplifier (CB24873E)
This circuit was found in the December 1984 issue of Radio Electronics magazine. The circuit has a...
Video preamplifier (CB8741E)
Found in 90s Radio Electronics, this circuit is intended for amplifying analog video signals....