Transistors are the building blocks for several specialized pulse-generating circuits:

Used to convert rectangular pulses into sharp, narrow "trigger" pulses by utilizing small time constants (

The transistor acts as an open switch. Both junctions are reverse-biased, effectively blocking collector current. To reach this state, the base voltage must fall below the threshold (roughly 0.6V0.6 cap V for silicon). 2. Core Pulse Circuit Architectures