.~ With control of input electrode or gain control electrode bias {13}
131
.~.~ Control of bias on separate gain control electrode
DEFINITION
Classification: 330/131
(under subclass 129) Subject matter wherein the bias control voltage is applied to an electrode of the amplifying device separate and distinct from the electrodes to which the signal input is applied.
(1) Note. Subject matter as above in which the separate and distinct electrode to which the bias voltage is applied is
the screen grid or anode of a vacuum tube amplifying device is not classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
128, for subject matter as above in which the separate and distinct electrode to which the bias voltage is applied is the screen grid or anode of a vacuum tube amplifying device.
