brief introduction: Introduction:A video amplifier is device or module that amplifies, buffers and filters analog video signals to maintain signal fidelity across 75W cabling. Typical applications include video cable extension, video recording systems, floppy disk head amplifiers, pulsed amplifiers in communications products and any circuit that requires high-performance, low-noise signal gain. Video signals can be presented to a video amplifier in different bandwidths for various video interface standards. These c