Electrically-operated devices
Tolerances (measurement)
Performance
Household equipment
Magnetic recorders
Preamplifiers
Radio equipment
Audio systems
Audio equipment
Radio receivers
Power amplifiers
Television equipment
Testing conditions
Electronic equipment and components
Acoustic properties and phenomena
Signal distortion
Signal-to-noise ratio
Amplifiers
Audio amplifiers
Record-players
Domestic
Television receivers
Communication equipment
Loudspeakers
Magnetic reproducers
Tape recorders
Frequencies
Incompatibility
Recording equipment
Sound intensity