(under subclass 202) Subject matter where additional bias supply or isolating means are furnished for an input electrode of an amplifying device.
(1) Note. Input electrode refers to any electrode to which the electrical signal input is applied, usually the control grid physically next to the cathode, and the cathode which is, usually, also common to the input and output circuits of the amplifier, the anode being an output electrode.
(2) Note. Cathode self-biasing circuits where the bias is established by the flow of plate current through the cathode impedance are not classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
142, for cathode self-biasing circuits where the bias is established by the flow of plate current through the cathode impedance.
