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History of Science Museum

Portable Wheatstone Bridge, by Pye Scientific Instruments, Cambridge, 20th Century

Inventory Number 65285


Acknowledgement: © History of Science Museum, University of Oxford, inv.65285

Item type
Object
Provenance
Transferred from the Department of Physical and Theoretical Chemistry, University of Oxford, in 2005.
Primary inscriptions
'Pye Scientific Instruments, W.G. Pye & Co. Ltd, York Street P.O. Box 60, Cambridge, England. Cat. no. 7383, Ser. No. 91441'
Physical material
Wood
metal
Glass
Plastic
Dimensions
Height: 190mm Width: 455mm Depth: 210mm Weight: 8500g
Inventory No
65285
Accession Number
2005-4/11

Description

Instrument is built into a wooden case with plastic handle and metal clasps. Instrument is accessed by opening a lid which reveals a panel consisting of dials for controlling rampage. A dial also records resistance being fed back to instrument. There is a jack for connecting an external galvanometer. Instructions for usage and a circuit diagram are attached to inside of lid. A door on the side of the box opens to allow access to battery terminals.