We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the time and the diodes in the dotted board must be mounted on the output transistor heatsinks.
This stair generator uses an R/2Fl network to determine the amplitude of the steps. This circuit...
At dusk this circuit triggers a relay switching lamps. The circuit can be powered from 6 to 12 V...
Found in a 1958’s publication, this receiver uses components that are nbot easy to find in our...