This circuit was found in a Popular Electronics from the 90s. The transistors are general purpose, and the gain depends on the ratio between R2 and R1.
Found in documentation from the 1990s, this circuit converts 12 V to 9 V from a car's power...
We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the...
This voltage doubler is indicated for applications where a voltage equal to twice that applied at the...