This circuit was found in the November 1992 issue of Radio Electronics magazine. The circuit has an amplification stage for the relay. The relay is rated at 12 V.
This converter converts a signal in the 200 kHz to 3.8 MHz band into frequency signals that can be...
This is a commercial circuit from the year 1958. Transistors are germanium types and transformers...
This complex circuit was found in the 1993 edition of the Electronics Experimenter's Handbook. Most of...