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Deflection Meter (Edison & Swan)

University College

Wooden case with removable back panel; circular glass face protector at front; white face with measurement scale in degrees marked “70-0-70”; double-ended needle behind a silver metal bar points to degrees; brass knop with ring at top of centre; three brass terminals on top of case behind the knop with ring; in between brass terminals the letters “I” and “Q”; inside: black fabric panels containing electromagnet behind vertical brass bar;

Accession Number: 2009.uc.21

Alternative Name:

Primary Materials: wood, glass, brass


Old Inventory Number = “uc21”; dial labelled “EDISON & SWAN/No 25535/1919”; inside “F141” written twice in pencil or ballpoint.

Dimensions (cm): Height = 9, Width = 5.3, Length = 6.5



Associated Instruments:

Manufacturer: Edison & Swan

Date of Manufacture: 1919


Additional Information and References:

Historical Notes: