We found this circuit in a Radio Electronics magazine from November 1976. The clock frequency is divided by 10 and the maximum value depends on the integrated circuits used.
This 1960s Japanese 5-transistor radio is powered by 9 V and has good sensitivity for the medium...
This circuit was obtained in an old Linear Technology documentation by applying to the monitoring of...
Found in the 1976 Siemens transistors manual, this circuit works with AM or FM IF signals. In the...