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  1. The electrode voltage value that reduces the dependent variable of an electron-tube characteristic to a specified low value. 2. See critical voltage.


Related Terms

DIODE CHARACTERISTIC DIODE CHARACTERISTIC

The composite diode clamp electrode characteristic of an electron tube when all electrodes except the cathode are connected together.

PH METER

An electronic voltmeter using a pH-responsive electrode that gives a direct conversion of voltage differences to differences of pH at the temperature of the measurement.

ELECTRODE CHARACTERISTIC

Relation between the electrode voltage and the current to an electrode, all other electrode voltages being maintained constant.

CRIMP CONNECTER

Light duty compressible fittings used to join low voltage DC circuitry. Available in spade or barrel type male to female configurations.

POLAR MARITIME AIR

An air mass that originates in the polar regions and is then modified by passing over a relatively warm ocean surface. It is characterized by moderately low temperature, moderately high surface specific humidity, and a considerable degree of vertical instability. When the air is colder than the sea surface, it is further characterized by gusts and squalls, showery precipitation, variable sky, and good visibility between showers.

TYPE OF TIDE

A classification based on characteristic forms of a tide curve. Qualitatively, when the two high waters and two low waters of each tidal day are approximately equal in height, the tide is said to be semidiurnal; when there is a relatively large diurnal inequality in the high or low waters or both, it said to be mixed; and when there is only one high water and one low water in each tidal day, it is said to be diurnal.

BACK BIAS

  1. Degenerative or regenerative voltage which is fed back to circuits before its originating point; usually applied to a control anode of a tube or other device. 2. Voltage applied to a grid of a tube (or tubes) or electrode of another device to reduce a condition which has been upset by some external cause.

DELTA

  1. The low alluvial land, deposited in a more or less triangular form, as the Greek letter delta, at the mouth of a river, which is often cut by several distributaries of the main stream. 2. A change in a variable quantity, such as a change in the value of the declination of a celestial body.

CRIMP TERMINAL

Light duty compressible fittings used to join low voltage DC circuitry. Available in spade or barrel type male to female configurations.

ACCELERATION VOLTAGE

The voltage between a cathode and accelerating electrode of an electron tube.

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