Golborne Stuff - Decade Boxes and Weston Cell

BVWS Information:

The British Vintage Wireless Society (BVWS) is a society of approximately 1300 World-wide members sharing a common interest in the preservation and communication of technical and historical data, and the preservation and restoration of Vintage radio and related equipment.

Six enthusiasts seeking to explore the history, science and technology of Radio founded the BVWS on 25th April 1976. Approaches to Museums and the Academic community were made with the result of being largely unsuccessful. Undeterred this small dedicated group eventually formed the BVWS. The Society's first AGM was held at the Historic Writtle hut, which in 1922 had been home to the Marconi Scientific Company's first experimental wireless transmitter, call sign 2MT.

Alexander Muirhead: Electrical engineer
Alexander Muirhead, FRS, born in East Saltoun, East Lothian, Scotland was an electrical engineer specialising in wireless telegraphy. Wikipedia
Born: 26 May 1848, United Kingdom
Died: 13 December 1920, Shortlands
Education: University College London
Awards: Fellow of the Royal Society
(Very Dead)

Edward Weston: (Still Dead)

Edward Weston grew up in Wolverhampton, UK. He would later reminisce about an incident that took place around 1857, when he was seven years old. Visiting a chemist’s shop, he spotted a strange machine consisting of a large red magnet, a large crank handle, and coils of copper wire linked to two brass cylinders. The man behind the counter told him to grasp the cylinders and then proceeded to turn the handle. The electric shock caused the boy to scream in surprise and delight; he then demanded that the man do it again. And again. And again.

If the story may be a later embellishment there is no question that Weston had an unusual love and aptitude for tinkering. He began reading science books at age nine and became a huge admirer of Michael Faraday, reproducing his experiments in a home laboratory. He also spent long hours exploring the many factories across the city. It seems extraordinary that a boy, barely a teenager, could enter a gas works or steel foundry to watch and ask questions of the workmen. But the result was that he developed an almost innate familiarity with the workings of industrial chemistry.

The Weston standard cell is a wet-chemical cell that produces a highly stable voltage suitable as a laboratory standard for calibration of voltmeters. Invented 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.
he original design was a saturated cadmium cell producing a 1.018638 V reference and had the advantage of having a lower temperature coefficient than the previously used Clark cell.[1]

One of the great advantages of the Weston normal cell is its small change of electromotive force with change of temperature. At any temperature t between 0 °C and 40 °C,

Other Great Vintage Electronics Channels:

Codeeze:
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Vintage Electronics Repair:
   / andymann1231  

Steves Vintage Electronics Long stay Workshop:
   / steveuk405  

George Christofi
   / georgechristofi  

Andrewausfa:
   / andrewausfa