Mechanical testing
Electronic equipment and components
Test equipment
Glow-discharge tubes
Specification (approval)
Qualification approval
Electron tubes
Inspection
Electrical testing
Circuits
Approval testing
Assessed quality
Performance testing
Luminous intensity
Quality assurance systems
Endurance testing
Electrical measurement
Marking
Cold-cathode tubes
Gas-filled tubes
Gas-discharge tubes
Adhesion tests
Optical measurement
Voltage measurement
Depth
Glow modulator tubes
Soldered joints
Testing conditions
Sampling methods