Electronics (Mike Jaroch)

Symbol for amplification factor [6] [7].

More than one conductor, as in a cable [4].

Couplers that patch receivers or transmitters to antennas. They also filter out
harmonics and spurious responses and impedance-match the equipment [17].

An electron tube normally classified according to its number of electrodes
(the multielectrode tube contains more than three electrodes) [6].

An array that consists of one or more arrays and is classified as to directivity [10].

An array that contains two or more parasitic elements and a driven element [10].

A servosystem that contains more than one servo loop; each loop is designed to perform its own function [15].

A single meter combining the functions of an ammeter, a voltmeter, and an ohmmeter [3].

The multiple paths a radio wave may follow between transmitter and receiver [10].

See POLYPHASE [5].