Found in a 90’s Popular Electronics, this circuit uses two CMOS inverters to generate a signal of a few hundred hertz determined by C1 and the R3 setting.
This circuit, from a 1976 National Semiconductor manual, is intended for current in a load using an...
With each clock of the 555 (negative transition) the 4013 (flip-flop) changes state by activating the...
This windshield wiper interval was found in old documentation. The NPN transistor is general...