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IEC 60457-4:1978 EN-FR
Rigid precision coaxial and their associated precision connectors. Part 4: 21 mm rigid precision coaxial line and associated hermaphroditic precision coaxial connector - Characteristic impedance 50 ohms (Type 9/21) - Characteristic impedance 75 ohms (Type 6/21)
现行
发布日期 :
1978-01-01
实施日期 :
IEC 60153-2:1974 EN-FR
Hollow metallic waveguides. Part 2: Relevant specifications for ordinary rectangular waveguides
REVISED
发布日期 :
1974-01-01
实施日期 :
IEC 60154-7:1974 EN-FR
Flanges for waveguides - Part 7: Relevant specifications for flanges for square waveguides
现行
发布日期 :
1974-01-01
实施日期 :
IEC 60153-4:1973 EN-FR
Hollow metallic waveguides - Part 4: Relevant specifications for circular waveguides
REVISED
发布日期 :
1973-01-01
实施日期 :
IEC 60153-7:1972 EN-FR
Hollow metallic waveguides - Part 7: Relevant specifications for square waveguides
现行
发布日期 :
1972-01-01
实施日期 :