"A" "B" "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

VACUUM EVAPORATION. Process of producing thin film components.

VACUUM TUBE. An electron tube evacuated such that its electrical characteristics are essentially unaffected by the presence of residual gas.

Tube


V ANTENNA. A bidirectional antenna, shaped like a V, which is widely used for communications. [Antenna Manufacturers]

VAR. Abbreviation for volt-amperes reactive.

Varactor Symbol
VARACTOR. A PN junction semiconductor, designed for microwave frequencies, in which the capacitance varies with the applied voltage. 'Varicap' or 'VVC', Voltage [dependent] variable capacitor [varies in picofarads]. [Varactor Diode Manufacturers]

VARACTOR FM MODULATOR. An FM modulator that uses a voltage-variable capacitor (varactor).

VARIABLE. A representative symbol that can assume any of a given set of values.

VARIABLE ATTENUATOR. An attenuator for reducing the strength of an ac signal either continuously or in steps, without causing signal distortion.

VARIABLE-MU-TUBE. Same as REMOTE-CUTOFF TUBE.

VARIABLE RESISTOR. A wire-wound or composition resistor, the value of which may be changed over a designed range. [Potentiometer Manufacturers]

VARIAC. An autotransformer that contains a toroidal winding and a rotating carbon brush so that the output voltage is continuously adjustable from zero to line voltage

Varistor Symbol
VARISTOR. A resistor that changes value with applied voltage. A varistor may also be called a VDR [Voltage Dependent Resistor]. Varistors will have a negative voltage coefficient. [Varistor Manufacturers]

VARNISHED CAMBRIC. Cotton cloth coated with insulation varnish. An insulation used on high-voltage conductors.

VD. Voltage DMOS. In a power supply circuit, voltage supplied by a MOS circuit, measured next to the MOS device.

VDD. In a power supply circuit supplied by a MOS circuit, the voltage supplied by a MOS device but referenced next to the power supply and not next to the DMOS device.

Next set of "V" terms.

 
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