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History of the manufacturer  

Sangamo Weston Limited; Enfield (Middlesex)

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Name: Sangamo Weston Limited; Enfield (Middlesex)    (GB)  
Abbreviation: sangamowes
Products: Model types

Sangamo Weston Limited, Great Cambridge Road, Enfield, Middlesex.

Founded: 1921
The company was founded in 1921 under the name "British Sangamo " as the United Kingdom subsidiary of the "Sangamo Electric Co." of Springfield, Illinois, USA and initially manufactured integrating kilowatt hour meters and later expanded its activities to include industrial time switches.

In 1936 British Sangamo acquired the "Weston Electrical Instrument Co. " of Surbiton, Surrey. This company was the United Kingdom subsidiary of the "Weston Electrical Instrument Corporation", of Newark, New Jersey, USA, a company founded by Dr. Weston (a pioneer in the field of electrical measurements), and recognized as one of the worlds leading manufacturers of electrical measuring and associated equipment. The two companies were combined to form "Sangamo Weston ", which designed and manufactured a wide range of electrical measuring and control equipment.

Sangamo Weston became associated with products for the aviation industry and as a result, devoted its entire resources during the 1939-45 war, to the production of measuring instruments, indicators and associated ancillary equipment for use on aircraft. After World War 2 resources were put back into the original product lines but they continued to design and manufacture aircraft measuring instruments, indicators, measuring systems and associated equipment for customers all over the world.

In 1976 the Sangamo Weston Group was acquired by Schlumberger and is now part of the Roxboro Group.

This manufacturer was suggested by Konrad Birkner † 12.08.2014.

Some models:
Country Year Name 1st Tube Notes
GB  43 Analyzer Type 4 E772   Bakelite front, steel case, wooden carrying case. Batteries: 1,5V = Ever Ready size "R" ... 
GB  54 Dynamometer AC/DC Voltmeter S6B   This voltmeter uses the dynamometer principle to enable AC and DC voltage measurements.... 
GB  73 Micro Ampere Meter DC S82   Measuring ranges: 20, 50, 100, 200, 500 and 1000 µA.