IEC 60169-17:1980 : Title: Radio-frequency connectors. Part 17: R.F. coaxial connectors with inner diameter of outer conductor 6.5 mm (0.256 in) with screw coupling - Characteristic impedance 50 ohms (Type TNC) Pages: 35 Year: Publisher: International Electrotechnical Commission Availability: Within 1-2 working days
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