This circuit can be used with motors or resistive loads, such as heaters and incandescent lamps. The circuit is from Popular Electronics from the 90s. All components used are common.
This precision circuit can provide timings from 0.2 milliseconds to 3 minutes accurately. The...
This circuit uses a phototransistor as sensor. The changes in the resistance of the transistor,...
We found this circuit in 1980s documentation. It can be used independently as CW or by exciting a...