Magnetic tape sound recording and reproducing system - Part 3: Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape (IEC 60094-3:1979 + A1:1980 + A2:1988 + A3:1996); German version EN 60094-3:1996 + A3:1996— 16 стр.
Disk record reproducing equipment; directives for measurements, markings and audio frequency connections, dimensions of interchangeable pickups, requirements of play back amplifiers— 4 стр.