Environmental testing
Electron tubes
Short-circuit current tests
Gas-filled tubes
Qualification approval
Endurance testing
Electron-wave tubes
Specification (approval)
Assessed quality
Quality assurance systems
Current measurement
Electrical wave measurement
Electrical measurement
Electronic equipment and components
Electrical testing
Electrical conductance
Phase shift
Noise (spurious signals)
Voltage measurement
Tuning
Microwave tubes
Power measurement (electric)
Gas-filled switching tubes
Test equipment
Microwave devices
Inspection
Performance testing
Electrodeless discharge tubes
Testing conditions
Approval testing
Marking
Circuits
Sampling methods
Power losses