Fecha de publicación: 01/01/1974 Rigid precision coaxial and their associated precision connectors. Part 2: 50 ohms 7 mm rigid precision coaxial line and associated hermaphroditic precision coaxial connector IEC 60457-2:1974
Fecha de publicación: 01/01/1974 Rigid precision coaxial and their associated precision connectors. Part 1: General requirements and measuring methods IEC 60457-1:1974
Fecha de publicación: 01/01/1974 Flanges for waveguides – Part 7: Relevant specifications for flanges for square waveguides IEC 60154-7:1974
Fecha de publicación: 01/01/1974 Measurement of the electrical properties of microwave tubes – Part 2: General measurements – Chapter V: Methods of measuring parasitic noise IEC 60235-2A:1974
Fecha de publicación: 01/01/1974 International Electrotechnical Vocabulary (IEV) – Part 531: Electronic tubes IEC 60050-531:1974
Fecha de publicación: 01/01/1974 Photometric and colorimetric methods of measurement of the light emitted by a cathode-ray tube screen IEC 60441:1974
Fecha de publicación: 01/01/1974 Methods for the designation of electrostatic deflecting electrodes of cathode-ray tubes IEC 60236:1974
Fecha de publicación: 01/01/1974 Measurement of the electrical properties of microwave tubes – Part 8: Backward-wave oscillator tubes – ‘O’ type – First supplement IEC 60235-8A:1974
Fecha de publicación: 01/01/1974 Measurements of the electrical properties of electronic tubes and valves. Part 27: Methods of measurement for inter modulation products in transmitting tubes IEC 60151-27:1974
Fecha de publicación: 01/01/1975 Radio-frequency connectors – Part 7: R.F. coaxial connectors with inner diameter of outer conductor 9.5 mm (0.374 in) with bayonet lock – Characteristic impedance 50 ohms (Type C) IEC 60169-7:1975