On the optimum design of cathode followers

CATHODE followers find wide application in modern electronics because of their simple structure, their fairly distortionless operation, and their low output impedance. Designing for small signal amplification is easy; for large signal amplification a complication is introduced with the requirement that the distortion-free driving range of the control grid be utilized fully. This problem can be solved graphically, but the procedure is cumbersome and of limited application. Its usefulness can be greatly enhanced if it is used merely to check and improve an approximate preliminary design obtained analytically.