Amplifier with complementary transistors (CB7465E)

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

Voltage Doubler using the 555 - II (CB1234E)
This traditional doubler configuration with the 555 IC can be found in other articles on the...
Photodiode Amplifier (CB4950E)
This circuit is from an 80's component manual. The components are from the time, but the circuit...
VFO with FET (CB4053E)
This circuit for the 3.5 MHz band (80 meters) was found in an old radio amateur documentation. The circuit...