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ID = 16742
United States of America (USA)
Brand: Westinghouse El. & Mfg. Co. - see also Canadian W.
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Voltage Limiter, rare gas filled 
Identical to KX642

Base Westinghouse 4 pin
Was used by Technology / Measurement
Filament No heater

3-electrode voltage arrester. Measurements for the original version. Later types were about 12 mm shorter and had an aluminium shell base. Tube handles 50 amps for 2 seconds. Intended to protect 115v and 230v power circuits 

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 121 x 55 mm / x 4.76 x 2.17 inch
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (II)   page 258
Geri Meier

KX642: Manufacturers documentation
Bruce Morgenstern

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