Descriptors | Corona-discharge tubes, Cold-cathode tubes, Gas-discharge tubes, Gas-filled tubes, Electron tubes, Electronic equipment and components, Quality assurance systems, Assessed quality, Qualification approval, Approval testing, Inspection, Specification (approval), Marking, Testing conditions, Environmental testing, Endurance testing, Electrical testing, Electrical measurement, Test equipment, Circuits, Voltage measurement, Performance testing, Thermal testing, Stability, Impedance measurement |