This 9 V battery eliminator was found in Radio Electronics magazine from June 1966. The transistor is of medium power and must be equipped with a small heat sink.
This circuit has some differences from the conventional types of control in which the delay in the...
This interesting AC / AC converter is only indicated for resistive loads and was obtained in a...
This circuit consists of an electret microphone amplifier powered by a 12 V voltage. A regulator is...