This circuit turns your air conditioner or other appliance on and off in adjustable cycles to save energy. The circuit is from a 1983 Electronics Experimenter Handbook Special projects.
This circuit was found in a 1986 publication. However, it can still be easily assembled, as the...
In the figure we have an anti-ring circuit with 4093. The duration of the pulse is given by R1 and...
This circuit was originally indicated to generate audio signal for analog TV sound. The circuit is from...