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 is a circuit to measure the gain of transistors, found in a European book of the 80s. The...
Using an RCA CA3018 integrated circuit, this circuit was found in the November 1970 issue of Radio...
This circuit allows the frequency generated by an oscillator with the 4069 to be divided by two,...