This two-port configuration of the 4001 was found in the April 1988 issue of Radio Electronics magazine. The timings are given by R1 and C1 as a function of the desired behavior of the circuit.
This circuit was obtained from an 1974 Everyday Electronics magazine. The circuit is still current as...
Found in a 90s Popular Electronics, this circuit uses components from that time, for a...
The output of this circuit can be coupled to a radio control transmitter to perform a...