Electronics (Mike Jaroch)

Narrow opening in a waveguide wall used to couple energy in or out of the waveguide. Also called an aperture or a window [11].

SOURCE, MAINTENANCE, AND RECOVERABILITY CODE (SM & R CODE)—Specifies
maintenance level for repair of components or assemblies [14].

Changing position quickly with the aid of a spring [3].

An electromagnetic device that changes electrical energy into mechanical motion; based upon the attraction of a movable iron plunger to the core of an electromagnet [3].

One of the three states of matter; it has definite volume and shape (ice is a solid) [1].

An electronic device that operates by the movement of elections within a solid
piece of semiconductor material [7].

Pertaining to sounds capable of being heard by the human ear [10].

(1) The object that produces the waves or disturbance. (2) The name given to them end of a two-wire transmission line that is connected to a source [10]. (3) The device which furnishes the electrical energy used by a load [1].

Absence of an RF signal in cw keying. Key-open condition or lack of data in communications systems. Also a period of no signal [12].

An electrical charge distributed throughout a volume or space [6].