IEC 60457-4-ed.2.0

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)
(Lignes coaxiales rigides de precision et leurs connecteurs de precision associes. Quatrieme partie: Ligne coaxiale rigide de precision de 21 mm et connecteur coaxial de precision hermaphrodite associe - Impedance caracteristique 50 ohms (type 9/21) - Impedance caracteristique 75 ohms (type 6/21))

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