This simple power supply circuit triggers when the light on the LDR reaches the level set on the potentiometer. The circuit is from an Electronics Now from July 1995.
This circuit is from a Radio Electronics from August 1992. The transistor used allows the control of...
This circuit can be used with 3 receivers and is intended for low frequencies (medium wave range). We...
This useful benchtop power supply uses a single LM350 integrated circuit as a regulator. The...