Found in American documentation from the 1990s, this circuit has active cycle control. The basic components are given along with the diagram. Transistors are general purpose.
This simple indicator circuit was found in a documentation from the 90s. Trimpots can have values...
Originally in the 1992 publication, this amplifier was recommended for use with record players....
This small transmitter can send its signals to a receiver placed at distances up to 100 m. The...