This circuit was found in an American documentation from 1968. The circuit uses transistors from that time. The output currents are shown in the diagram.
In the figure we have a very sensitive touch switch circuit. A touch of the sensor causes the...
We found this timer for times of a few minutes in a 1974 Ferranti transistor manual. The relay is 37...
This circuit is from the 1990 Motorola Linear Databook, which can be developed with more modern...