Found in a 1969s American documentation, this circuit uses transistors from that time. The configuration can be adapted to use modern equivalent components.
The configuration presented below was obtained in the Linear Application Handbook of the National...
An stable multivibrator with 50% of duty cucle can be mounted using the 555 as shown by the...
This circuit was found in the 1991 Electronics Experimenter's Handbook. It activates a relay when...