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 very high input impedance preamplifier is from a publication of 1977 but can also be mounted...
This circuit flashes a neon lamp from a low voltage source of 6 to 15 V. The transformer is low...
This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output...