This dual flasher for high brightness LEDs was found in an American documentation from the 90's. The circuit can be powered by lower voltages with the reduction of R1 and R4.
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...