Original Callendar and Griffiths Resistance Bridge, 1850-1900

Made:
1850-1900 in England
maker:
Hugh Longbourne Callendar
Early form of Callendar and Griffiths bridge, unsigned

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Early form of Callendar and Griffiths bridge, unsigned
Science Museum Group
© The Board of Trustees of the Science Museum

Early form of Callendar and Griffiths bridge, unsigned, 1850-1900

Details

Category:
Heat
Object Number:
1930-356
Materials:
box (wood), brass (copper, zinc alloy), copper (metal), solder and lead (metal)
Measurements:
overall: 34 mm x 445 mm x 40 mm, , .375kg
type:
resistance bridge (electrical) and measuring device (electrical)
credit:
Callendar, Mrs.