The circuit shown is from old English documentation and can be made with BC548 transistors for low power ones. The 2N3055 must be mounted on a heat radiator.
According to the 1990 documentation in which we found this circuit, the chickens must be fed at...
Although the integrated used originally is uncommon today, more modern operating equivalents can...
This circuit was found in a General Electric documentation from 1965. The purpose of this circuit is...