Galvanometer

Physics

Accession Number: 2009.ph.25

Description:

A wooden box the top of which has a lever with label “Coarse Zero Adjuster Slide Scale for Final Adjustment”. On the front of the box there is a sliding scale labelled 0 to 10 and -5 to 5. To the right of the scale on the front is a knob for adjusting the scale. There are two terminals at the back. On the left side is an inverse electrical plug, with label “6 VOLTS”. A tag on the bottom reads “Galvanometer CAT.No.4625 SER.No.53451 Sensitivity .0076 mw/MM resistance 962ohms PERIOD 2.06 seconds C.D.R.X4000Ohms Date 2/24/50 Rubicon Company Philadelphia.

Primary Materials: Wood, Metal, Glass

Markings:

Underneath the scale on the front of the box there are two tags reading “Made by Rubicon Co. Philadelphia Made in U.S.A.”. A tag on the bottom reads “Galvanometer CAT.No.4625 SER.No.53451 Date 2/24/50 Rubicon Company Philadelphia”

Dimensions (cm): Height = 19, Width = 19, Length = 25.5

Function:

Device for detecting and measuring electrical current.

Condition:

Good. The corners and edges of the object show some minor signs of wear; the stain is worn, particularly on the right-front hand edge of the object. The glass dial screen is coming away from its frame on the left hand side at both the top and the bottom. The metal of the plug is slightly speckled. The black face of the “MADE IN U.S.A.” plaque is speckled.

Associated Instruments:

Manufacturer:

Rubicon Co. Philadelphia, Pennsylvania, USA

Date of Manufacture: 1950

Provenance:

University of Toronto Department of Physics

Historical Notes: