This circuit with power MOSFETs was found in a 1980s Siliconix documentation. Equivalent MOSFETs can be used, as well as other transistors. Note the symmetric power supply.
In the circuit in the figure, when a pulse of light falls on the LDR, the circuit arms with the...
This switched or switched regulator was suggested by Texas Instruments in one of its application manuals....
Using transistorized regulators with NPN and PNP transistors we can create a symmetrical source of...