One type of these objects is named because it has two sets of junctions separating the base, collector, and emitter; however, nowadays, the most common type of them are MOSFETs.
The hybrid pi and T models describe these objects when they receive small signals. Pinch-off in these devices is quantified by a channel-length modulation parameter symbolized lambda and a transconductance symbolized g. An old type of these devices is diagrammed using a circle intersected by three pins labelled C, B, and E. These devices' characteristic curves converge to a steady-state value on an IÂ–V diagram that is separated into an active region, a cutoff region, and a (*)  saturation region. One type of these objects is named because it has two sets of junctions separating the base, collector, and emitter; however, nowadays, the most common type of them are MOSFETs. For 10 points, name these electronic devices that can either amplify currents or act as switches.
The hybrid pi and T models describe these objects when they receive small signals.
transistor s [or  bipolar junction transistor s; or  BJT s; or  field effect transistor s; or  FET s; or MOSFET s or  metal-oxide-semiconductor field effect transistor  until it is read] 