We found this circuit in a 1968 Electronics World. The transistors are from the era and information about the transformer was included. Transistors support current equivalents.
The original version of this circuit was suggested by an old Radio Electronics (1990). The circuit can be...
A recreational application of the 4018 is shown in the figure in which we have electronic dice....
This 80's circuit turns off a TV or other appliance after a set time. The base is a 555 IC and the...