{"product_id":"weston-normal-cell-by-cambridge-instrument-company","title":"Weston Normal Cell By Cambridge Instrument Company","description":"\u003ch1\u003eWeston Normal Cell By Cambridge Instrument Company\u003c\/h1\u003e\n\u003cp\u003eThis is a portable Vintage Weston Normal Cell By Cambridge Instrument Company, which would have been used as a laboratory standard for voltage. They typically stabilised at around 1.018638 Volts. No current was normally drawn from the cell.\u003c\/p\u003e\n\u003cp\u003eThis type of cell was made between 1924-1967 and are no longer in use. \u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eWe are selling this as a scientific curio\/display item only\u003c\/span\u003e\u003c\/strong\u003e but it is working with a measured output of 1.018 volts at 20ºC.  \u003c\/p\u003e\n\u003cp\u003eThe cell consists of a brass cylinder with 2 connections at top marked ‘+’ and ‘-’.  It is labelled:\u003c\/p\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eWeston Normal Cell\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eNP 53754\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eNo. 15551\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eCambridge Instrument Co. Ltd England\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003eInvented by Edward Weston in 1893, it was adopted as the International Standard for EMF from 1911 until superseded by the Josephson voltage standard in 1990.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDiameter: 9cm\u003cbr\u003eMax Height: 14.5cm\u003c\/p\u003e\n\u003cp\u003eThis beautiful scientific instrument is a must-have for collectors of \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/tests-measures\" target=\"_blank\"\u003e\u003cstrong\u003evintage electronic\/physics\/science equipment\u003c\/strong\u003e\u003c\/a\u003e as a display item in an office, University, or man-cave.\u003c\/p\u003e\n\u003cp\u003eNB: The photos have been taken with and without flash, hence the differences in colour.\u003c\/p\u003e\n\u003ch2\u003e\u003c\/h2\u003e","brand":"Cambridge Instruments (CI Co)","offers":[{"title":"Default Title","offer_id":43907703996673,"sku":"","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/DSC06683.jpg?v=1686840281","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/weston-normal-cell-by-cambridge-instrument-company","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}