This timer for long time intervals is from the 1990 Motorola Linear Databook. The setting applies to other operational ones and component values are given below the diagram.
This windshield wiper timer was obtained in an 80's Hands On. The transistor can be the BC548 and...
This circuit was found in a 1977 documentation. It limits the voltage from a source using zener...
This simple circuit found in an American 80's documentation simply blames if there are toxic gases in...