Network Analysis and Feedback Amplifier Design, H.W. Bode



Physical Electronics, C.L. Hemenway, R.W. Henry, M. Caulton



Short Wave Wireless Communication, A.W. Ladner, C.R. Stoner

References for technical discussion found in these pages

When it comes to authority for amplifier characteristics in a closed-loop design, Bode established both the math and the graphical display. The display is common to every discussion of bandwidth, spurious responses, phase and so on. His math reveals how to turn feedback into gain and impedance stabilization, reduced distortion, and many other characteristics. The excerpt here provides reference for discussion of Plate Resistance as a element in the Thevenin equivalent for an amplifier.

My reference, Short Wave Wireless Communications is a work from the mid 30's. The discussion found in this excerpt is for Tank design considerations in an amplifier plate circuit. It reveals how low the Q of a Tank needs to be, to be an efficient coupler of Power to a load.

This is a discussion relating to the Tube Plate Resistance and its derivation for a simple circuit. The discussion is limited to the physics of the electron beam within a tube, by and large, and the associated "induced" current.