Electronics (Mike Jaroch)
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An armature winding in which the two ends of each coil are connected to commutator segments separated by the distance between poles .
The shape of the wave obtained when instantaneous values of an ac quantity are plotted against time in rectangular coordinates .
Observation displays of voltage and current variations with respect to time or
by harmonic analysis of complex signals .
A small section of an expanding sphere of electromagnetic radiation that is perpendicular to the direction of travel of the energy .
A rectangular, circular, or elliptical metal pipe designed to transport electromagnetic waves through its interior  .
TR and atr tubes housed in a resonant cavity attached to a waveguide system.
WAVEGUIDE MODE OF OPERATION
Any particular field configuration in a waveguide that satisfies the boundary conditions. Usually divided into two broad types: the transverse electric (TE) and the transverse magnetic (TM) modes .
A rod of conductive material used as impedance changing devices in waveguides .
A screw that projects into a waveguide for the purpose of changing the
The distance, usually expressed in meters, traveled by a wave during the time interval of one complete cycle. It is equal to the velocity divided by the frequency   .