This Hall effect sensor circuit was found in the July 1998 issue of Electronics Now magazine. It is suitable for experiments with magnets in laboratories and schools.
Two rows of LEDs run in opposite directions when light strikes the sensor. This circuit was found...
Using this circuit the lamps glow in sequence in a speed given by the capacitors. The SCRs present a...
This power step for relay activation was found in the 1964 RCA transistors manual. The circuit is of the...