Amplifier with complementary transistors (CB7465E)

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

Reminder (CB9548E)
This circuit maintains on a flashing LED at a frequency determined by the capacitor. The...
Touch switch (CB9559E)
This circuit controls loads powered by the power grid, remembering that it is a half wave...
Who is the fast? (CB462)
This two competitor version of the game is shown below and uses lamps as indicators. You can...