Oscilloscope Preamplifier

A little about op amps and video amps This article details the basic theory of operation of a video amplifier and the construction of a practical video amplifier project. I built this project to expand the sensitivity of an older oscilloscope. Before 1 begin a discussion on video amplifier theory ' a short review of operational amplifiers op amps is useful. An amplifier is an electronic circuit containing Bipolar Junction Transistor BJT and or Field Effect Transistor PET devices, These types of...