General Radio / Gr / Iet 1404-a 1000 Pf Reference Standard Capacitor 1404a

US $3000

  • East Providence, Rhode Island, United States
  • May 30th
General Radio / GR / IET 1404-A 1000 pF Standard Reference Capacitor The GR 1404-A 1000 pF (1 nF) Standard Capacitor standard capacitor is the standard of choice in metrology labs, and is used today by standards labs around the world. These capacitors have been designed as primary reference standards of capacitance with which working standards can be compared. In addition to capacitance, combined with an accurately known external resistor, the GR 1404-A 1000 pF Standard Capacitors becomes a standard of dissipation factor. All critical parts of the plate assembly are made of Invar for stability and low temperature coefficient. After heat cycling and adjustment, the assembly is mounted in a heavy brass container, which, after evacuation, is filled with dry nitrogen under pressure slightly above atmospheric and sealed. The container is mounted on an aluminum panel and protected by an outer aluminum case. Each capacitor is subjected to a series of temperature cycles to determine hysteresis and temperature coefficients and to stabilize the capacitance. Datasheet available here. The item is in good condition, tested and verified to be accurate. The digibridge, test fixture and cables shown in the photos are not included in the sale and are shown for demonstration purposes only. Shipping Weight (lbs.): 12 Shipping Dimensions (in.): 13 x 13 x 13 Click Here for Terms and Conditions of Sale

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