Vca (Voltage Controlled Amplifier)
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Vca (Voltage Controlled Amplifier): An amplifier whose output is controlled by varying its voltage rather than by direct resistance (as with a potentiometer).
Ripple (Amplifier): A train of pulses that occurs when AC is changed to DC via a rectifier. These pulses are left on the DC if not filtered and regulated properly, or if toomuch current is being drawn.
National Priorities List For Uncontrolled Hazardous Waste Sites: (National Priorities List or NPL) EPA's list of the most serious uncontrolled or abandoned hazardous waste sites in the United States. The NPL is updated on a regular basis.
Die-Cast Controlled-Fill Aluminum Frame: Alloy frames featuring large one-piece sections constructed with a high-vacuum mold process, reducing porosity and eliminating air pockets that can result when pouring molten aluminum. These . . . View Full Definition
Risk Controlled Arbitrage: A self-funding, self-hedged series of transactions that generally use mortgage securities (MBS) as the primary assets.
Uncontrolled Spin: A spin in an airplane in which the controls are of little or no use in effecting a recovery.
Vco (Voltage Controlled Oscillator): An oscillator whose frequency output is controlled by varying its voltage rather than with a potentiometer.
Vcf (Voltage Controlled Filter): An audio filter whose effective frequency band is controlled by varying its voltage rather than with a potentiometer.
Controlled Foreign Corporation (CFC): A service that provides for a single presentation of checks each day (typically in the early part of the day).
Uncontrolled Airspace: Class G Airspace: airspace not designated as Class A, B, C, D or E.