Found in a 90's EDN, this circuit generates signals in the frequency range given by the graph. The circuit requires a symmetrical power supply.
With this circuit it is possible to control a current of several amps, depending on Q1, from a low...
Programmable unijunction transistors are not commonly used components today. This Popular...
This circuit has a waveform adjustment made with a potentiometer. C1 and R1 determine the base...