The circuit presented was suggested by Texas Instruments in an opto-electronics manual. The transistor can be the BC548 and the supply voltage depends on the application.
This circuit split the voltage of a Power supply allowing it to be used as dual supply. The limit...
In the figure we give a simple divisor by 2. The complementary output (Q /) is connected to input...
This circuit from July 1975 Radio Electronics uses any operating system with a symmetrical source....