Solution of a Transistor Transient Response Problem

The transient response of the exact current transfer function,
\alpha(\omega)
, of a grounded-base junction transistor operating in the short-circuited output condition is compared with the transient response derived from the conventional approximate form for
\alpha(\omega)
. The response to both a unit impulse and a unit step is calculated, and it is shown how the results may be readily adapted to yield a rapid oscilloscope method of determining the
\alpha
cutoff frequency and several of the transistor material and dimensional constants.