Electronics (Mike Jaroch)

A number system based on powers of eight. This system is used extensively in computer work [13].

Equipment that tests and isolates faults in modules or assemblies removed from systems [14].

The unit of electrical resistance. That value of electrical resistance through which a constant potential difference of 1 volt across the resistance will maintain a current flow of 1 ampere through the resistance [1].

The current in an electrical circuit is directly proportional to the electromotive force in the circuit. The most common form of the law is E = IR, where E is the electromotive force or voltage across the circuit, I is the current flowing in the circuit, and R is the resistance of the circuit [1].

Resistance in ohms [1].

A meter used to measure resistance [3] [16].

The resistance of any square area of thin film resistive material as measured
between two parallel sides [14].

A type of planar tube, similar to the lighthouse tube, which has cooling fins. The oilcan tube is designed to handle large amounts of power at uhf frequencies [6].

An antenna that radiates and receives equally in all directions (nondirectional) [10] [18].

Continuously monitors the performance of electronic systems [14].

Those substances that do not transmit (pass) any light rays; that is, the light rays are either absorbed or reflected [10].

(1) The condition of an electrical circuit caused by the breaking of continuity of one or more conductors of the circuit; usually an undesired condition. (2) A circuit that does not provide a complete path for the flow of current [1].

A transmission fine that has a terminating impedance that is infinitely large [10].

An amplifier designed to perform computing or transfer operations and that has the following characteristics: (1) very high gain, (2) very high input impedance,
and (3) very low output impedance [8].

A coupler composed of an LED and a photodiode and contained in a light-
conducting medium. Suitable for frequencies in the low-megahertz range [7].

The most practical operating frequency that can be used with the least amount of problems and is roughly 85 percent of the maximum usable frequency [10].

Devices that either produce or use light in their operation [7].

A gate that performs the logic OR function. It produces an output 1 whenever any or all of its inputs is/are 1 [13].

A circuit between operators used for operations control and coordination [17].

Responsibility of the user organization [14].

The point on a graph where the vertical and horizontal axes cross each other [10].

An oscillator is a nonrotating device that produces alternating current. The frequency is determined by the characteristics of the device [9].

A meter that is not permanently installed in a circuit. Usually portable and
self-contained, these meters are used to check the operation of a circuit or to isolate troubles within a circuit [3].

The end of a transmission line that is opposite the source; receiving end [10].

The impedance that is presented to the load by the transmission line and its
source [10].

When the input signal amplitude is increased to the point that the transistor goes into saturation and cutoff [7].

A condition that exists when the peaks of the modulating signal are limited [12].