This is the normal circuit of a relaxation oscillator using an unijunction transistor such as the 2N2646. Frequency is given by the capacitor and the waveshapes for the signals are given in the diagram.
This is the normal circuit of a relaxation oscillator using an unijunction transistor such as the 2N2646. Frequency is given by the capacitor and the waveshapes for the signals are given in the diagram.