Amplifier with complementary transistors (CB7465E)

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

MW Receiver ZN414 (CB4547E)
This circuit was obtained from an English magazine from 1985. The N414 is a complete, not easy to...
Touch Alarm (CB6450E)
Found on Popular Electronics from 1969, this circuit can be implemented with components that are...
Transformer coupled AF amplifier (CB21547E)
This circuit is from a book of transistors from 1954. The transistors are from the time and the...