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History of Science Museum

Carbon Arc (Model EGM2) for Neurophysiology Experiments, by Cambridge Instrument Company, London & Cambridge, Probably 1920s

Inventory Number 59269


Acknowledgement: © History of Science Museum, University of Oxford, inv.59269

Item type
Object
Provenance
Transferred from the University Laboratory of Physiology, Oxford, in 2005, per Professor David Paterson.
Primary inscriptions
"CAMBRIDGE / INSTRUMENT CO. LTD. / LONDON & CAMBRIDGE / C75859" printed on metal plaque upon upper exterior surface of base. "Mod: EGM2 No 658142 / 6 Amp 55 Volt ___" printed on metal plaque upon exterior surface of main metal body.
Physical material
Brass
iron
assorted metals.
Dimensions
Height: 220mm Width: 420mm Depth: 127mm Weight: 6.05kg
Inventory No
59269
Accession Number
2013-27

Description

This is a Carbon Arc Lamp used for neurophysiological experiments. It is a Precision Instrument Model EGM2, with black enamalled metal body, upon base with three adjustable supporting legs. With additional lacquered brass components including assorted dials, screws, terminals and company plaque. Main metal body is rectangular in shape and includes assorted alloy and iron switches and components, compicated in design. One side is removable and reveals interior displaying a coil and metal components.

NOTE PENDING REVISION It's a carbon arc lamp for neurophysiology experiments.