The circuit uses a fast Norton amplifier in a configuration that excites a 75 ohms line. The circuit is suggested by National's 1994 Linear Applications Handbook.
This power control with SCR was found in Radio Electronics from April 1966. The components are...
A frequency divider for digital signals can be constructed based on a single 4018 integrated...
The circuit shown is from Motorola's 1990 Linear Databook. Shaded components are optional. The...