This circuit for communications receivers was found in the January 1974 issue of Radio Electronics magazine. The transistors are Japanese types of the time, as the circuit was part of equipment of that origin.
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...
Found in General Electric documentation from 1967, this circuit uses an unusual PUT today. The...
This circuit, which uses a VU-meter with zero in the center of the scale, which is not easy to...