At its simplest, a scope probe provides a physical and an electrical connection between a device or circuit under test and an oscilloscope's input amplifier. These days, most engineers and technicians ...

The voltage-amplifier stage (or VAS) has often been regarded as the most critical part of a power-amplifier, since it not only provides all the voltage gain but also must deliver the full output ...

Most buffer amplifiers use some kind of “follower” circuit such as a BJT or a MOS in a common-collector or common-drain configuration. Such transistors, however, have a finite transconductance (gm) ...