Found in a Radio Electronics store from the 90s, this circuit is for cars of that era. The circuit uses a 2N3055 that must be equipped with a heat sink.
Higher power of an LM380N that has a power of 2.5 W can be obtained with a bridged configuration. The power...
This circuit is a traditional timer setting using 555. We found this setting in a year 2000...
This simple circuit with transistors turns on a small lamp when it gets dark. The sensor is an LDR...