This multiple switching power supply was found in the April 1991 issue of Radio Electronics magazine. The MOSFET must be equipped with a heat sink.
This SCS counter circuit was found in a 1964 General Electric documentation. The circuit has a...
This simple 1-transistor reflex receiver was published in Radio Electronics magazine in September 1959....
Operational amplifiers used in this 80's circuit is not very common today, but the setting can be...