The circuit is of the Motorola Linear Databook of 1990. The power source must be symmetrical and the characteristics of the circuit are given next to the diagram.
We found this circuit in an American 1980s documentation. The transistors can be equivalent as BC548...
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...
This preamplifier circuit for turntable cartridges was found in the March 1994 issue of...