This circuit is from Electronics Now magazine, February 1987. The number of channels is high depending only on the distances of the stations and the losses in the cables.
This is a simple configuration for a low-pass filter using a 741 operational-amplifier. Other...
This circuit is from an English book from the 1980s. Transistors can be general-purpose types of...
This circuit is from a technical documentation from Motorola from the 70s, and for this reason it is...