The transient response of transistor switching circuits

A model is presented for the interpretation of point-contact transistor switching phenomena. The assumption is made that the frequency cut-off is high when the transistor is not saturated and low when saturated. The low-frequency response in saturation can explain qualitatively the anomalous pulse requirements for switching transistors from saturation to cutoff. Some switching criteria are derived and the one-shot multivibrator is discussed.