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.
We found this transistorized AM receiver of the regenerative type of excellent quality in a...
This continuity tester for low resistances was found in an English magazine from 1978. The circuit...
Found in American documentation from the 1980s, this circuit rejects strong MW stations that may...