Amplifier with complementary transistors (CB7465E)

This stage of two complementary transistors was found in a 1977 Radio Handbook. Transistors admit current equivalents.

Car Alarm (CB16911E)
This circuit uses unijunction transistors and drives a small speaker through an output...
2A Regulator (CB19505E)
This circuit, found in a publication from the 1980s, can have its output voltage determined by the...
Logarithmic Amplifier (CB12505E)
The operational amplifier for this circuit, found in a 1979 publication, may be the 741....