This is a low-gain amplifier to operate as a booster. We found it in an American documentation from 1947. The circuit uses a coupling transformer at the input.
We found this test circuit in Radio Electronics magazine from July 1962. The circuit uses...
In the figure we have another application for the LT3518 integrated circuit from Linear Technology...
This circuit was obtained from a 1966 General Electric manual. The circuit applies only to...