We found this circuit in a Radio Electronics issue from July 1969. The lamp remains on until C1 opens. The time is given by capacitor C1.
ON Semiconductor AMIS−3910XGEVB Evaluation Board demonstrates the features and capabilities of the...
This circuit is intended for the control of a heating system motor with up to 10 kW of power. The...
This circuit turns on a lamp in the dusk and turn off in the down. Only incandescent lamps can be...