This circuit was used in tape recorders to clear the tape of any previous recordings for a new recording. The circuit is from a Radio Electronics dated September 1982.
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...