Found in a 1967 RCA manual, this circuit uses components from the era that can be replaced by modern equivalents. The circuit is for resistive loads.
This circuit, which can be used as a shield, was found in a 1980s documentation. The circuit can be...
We found this circuit in an English publication of 1976. It can be easily assembled by changing the...
This switch is triggered by the touch of the sensors, which can be two metal plates. These plates...