This circuit controls 6 LEDs in two sets with the phase change cycles controlled by a 555 oscillator. The circuit can be powered by voltages between 6 and 12 V.
This adjustable voltage regulator circuit can be implemented with different types of transistors,...
This circuit appears with variations in other points of this section. This version is from...
The LM123 series (223 and 333) is manufactured by several semiconductor companies. The circuit below...