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.
Incandescent lamps of up to a few amps can be placed to flash with this circuit. The frequency depends...
The trip circuit for this alarm is given in CB16765E. The circuit uses common components and acts...
This circuit was obtained in a 1986 documentation consisting of an active frequency divider for...