(under the class definition) Subject matter including a wave guide or coaxial transmission line, the resistor or element thereof lying within the outer sheath of the wave guide or coaxial line.
(1) Note. Where the line or wave guide is limited to electrical use as by recitation of electrical dimensions, or where impedance matching structure is included as a quarter
wave stub or a particular shape of the resistor for impedance matching purposes as tapered ends, classification is in Class 333, Wave Transmission Lines and Networks. For classification in this subclass (216), only a nominal wave guide or coaxial line, or mechanical limitations which do not restrict the line or wave guide to electrical use, need be recited.
SEE OR SEARCH THIS CLASS, SUBCLASS:
20+, for resistors whose value is responsive to electrical current and/or voltage, and incased in a wave guide or coaxial line.
64+, for resistors with electrical shielding.
138+, and 217+, for tapered resistors. 220+, for a resistor in a detachable electrical connector.
226+, for incased, embedded or housed resistors generally.
SEE OR SEARCH CLASS
324, Electricity: Measuring and Testing,
95, for electrical measuring devices including a resistor in a wave guide or long line, as for example devices for measuring radio frequency power by measuring the change in value of a resistor due to this power.
333, Wave Transmission Lines and Networks,
22, for dissipating terminations for long lines, some electrical limitation of the line or coupling being recited, as a tapered resistance for impedance matching purposes; subclasses 32+ for coupling devices with impedance matching; subclass 81 for attenuators; subclasses 84+ for electrically long lines; and subclasses 97+ for long line elements and components. See also (1) Note above.
