V R TUBE CHARACTERISTICS
Description
· To draw characteristics of VR Tube , complete with power supply and Tube mounded on base.
· Voltage Regulator (or VR) valves are ingenious devices designed to maintain a constant voltage across their terminals over a range of currents.
· VR tubes have a cold cathode and contain gases at low pressure rather than the conventional high vacuum used in amplifying valves.
· The internal gasses are deliberately chosen to ionize (conduct) at a particular predefined voltage and is this mechanism that provides the voltage regulation.
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