Electronics (Mike Jaroch)

A device upon which lacing may be wound to prevent fouling the tape or cord and to aid the lacing process. (Usually made from brass, aluminum, fiber, or plastic) [4].

The amount one wave is behind another in time; expressed in electrical degrees [2].

A core built up from thin sheets of metal insulated from each other and used in
transformers [2].

Conductors or runs on pcbs [14].

An armature winding in which opposite ends of each coil are connected to adjoining segments of the commutator so that the windings overlap [5].

An integrated circuit containing 1,000 to 2,000 logic gates or up to 64,000 bits of memory [14].

An acronym for light amplification by stimulated emission of radiation [17].

In Boolean algebra, the law which states that the odd term will be absorbed
when a term is combined by logical multiplication with the logical sum of that term and another term, or when a term is combined by logical addition with the logical product of one term and another term
(for example, A(A + B) = A + AB = A) [13].

Like poles repel; unlike poles attract [1].

This is the most common type of filter. It is used in a power supply where output current is low and load current is relatively constant [7].

This filter is used in power supplies where voltage regulation is important
and where the output current is relatively high and subject to varying load conditions [7].

The opposite of lag. Also a WIRE or CONNECTION [2].

The inductance of the lead wires connecting the internal components of an
electron tube [11].

A continuous jacket of lead molded around a single conductor or multiple conductor cable. Generally used to ensure conductors are protected from water or extensive moisture [4].

A cell in an ordinary storage battery in which electrodes are grids of lead containing an active material consisting of certain lead oxides that change in composition during charging and discharging. The electrodes or plates are immersed in an electrolyte of diluted sulfuric acid [1].

The small amount of current that flows through the dielectric between the
conductors of a transmission line [10].

Magnetic flux lines produced by the primary winding that do not link the turns of the secondary winding [2].

The electrical resistance that opposes the flow of current through the
dielectric of a capacitor. The higher the leakage resistance, the slower the capacitor discharges or leaks across the dielectric [2].

The LSD is the digit whose position within a given number expression has the least weighting power [13].

A rule or procedure used to determine the direction of current flow in a generator [2] [5].

The current induced in a circuit, caused by its motion in a magnetic field or a change in it's magnetic flux, in such a direction as to exert a mechanical force opposing the motion or to oppose the change in flux [2].

Light waves emitting from a source in straight lines [10].

A PN-junction diode that emits visible light when it is forward biased. Depending on the material used to make the diode, the light may be red, green, or amber [7].

An electron tube shaped like a lighthouse that is designed to handle large amounts of power at uhf frequencies [6].

A device that prevents (limits) a waveform from exceeding a specified value [9].

An amplifier in which the response is linear for weak signals and logarithmic for
large signals [18].

A line in an electric or magnetic field that shows the direction of the force [1].

Straight line from a radar antenna to a target [18].

Circuit that stores energy and forms pulses in the same circuit element,
usually the pulse-forming network (pfn) [18].

Having an output that varies in direct proportion to the input [6].

An impedance in which a change in current through a device changes in direct
proportion to the voltage applied to the device [12].

One of the three states of matter. It has a definite volume but no definite form (water is a liquid) [1].

Source of cooling for high-heat producing equipments, such as microwave components, radar repeaters, and transmitters [18].

A combined, simultaneous display of the amplitude and phase relationships of
two input signals on a CRT [17].

(1) A device through which an electric current flows and which changes electrical energy into another form. (2) Power consumed by a device or circuit in performing its function [1] [13].

See OUTPUT END [10].

A passive attenuator in which the loss in one direction is much greater than that in the opposite direction. One example is a ferrite isolator for waveguides that allows energy to travel in only one direction [11].

See LUMPED-IMPEDANCE TUNING [10].

The effect of a voltmeter upon the circuit being measured that results in an
inaccurate measurement. Loading effect is minimized by using a voltmeter with an internal resistance many times higher than the resistance of the circuit being measured [3].

An area of greater signal strength in the transmission pattern of an antenna [10] [18].

A continuation of current flow within a battery cell when there is no external load. Caused by impurities in the electrode [1].

Receiver that uses a linear logarithmic amplifier (lin-log) instead of a
normal linear amplifier [18].

The basic principles and applications of truth tables, interconnections of off-on circuit elements, and other factors involved in mathematical computation in automatic data processing systems and other devices [13].

The primary control information processor in digital equipment; made up of electronic gates and so named because their operation is described by simple equations of a specialized logic algebra [13].

In computers and data processing equipment, a diagram representing the logical
elements and their interconnections without necessarily expressing construction or engineering details [13].

The smallest building blocks that can be represented by operators in an appropriate system of symbolic logic. Typical logic elements are the AND-gate and the flip-flop, which can be represented as operators in a suitable symbolic logic. Also a device that performs the logic function [13].

Any instruction that executes a logic operation that is defined in symbolic
logic, such as AND, OR, NAND, or NOR [13].

A nonarithmetical operation in a computer, such as comparing, selecting, making references, matching, sorting, and merging, where the logical YES or NO quantities are involved [13].

A diode matrix (See MATRIX) or other switching arrangement that is capable of
directing an input signal to one of several outputs [13].

A symbol used to represent a logic element graphically. Also a symbol used to
represent a logic operator [13].

An antenna that is a wavelength or more long at its operating frequency [10].

Those waves in which the disturbance (back and forth motion) takes place in
the direction of propagation. Sometimes called compression waves [10].

A curved conductor that connects the ends of a coaxial cable or other transmission line and projects into a waveguide or resonant cavity for the purpose of injecting or extracting energy [10] [11].

Inefficient coupling of energy from one circuit to another that is desirable in some applications. Also called weak coupling [11].

The band of frequencies from 30 kHz to 300 kHz [17].

Modulation produced in an earlier stage than the final [12].

See PREAMPLIFIER [18].

A filter that passes a majority of the low frequencies on to the next circuit and
rejects, or attenuates, the higher frequencies. Also called a high-frequency discriminator [9] [12].

All difference frequencies below that of the carrier [12].

The lowest frequency a circuit will pass [9].

The minimum operating frequency that can be used for communications between two points [10].

See LEAST SIGNIFICANT DIGIT [13].

The properties of inductance, capacitance, and resistance in a transmission line
[10].

The insertion of an inductor or capacitor in series with an antenna to
electrically lengthen or shorten the antenna [10].