General Information

Serial #

27E

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

WOOD BASE/ METAL & SYNTHETIC PARTS/ FABRIC COVERED WIRING

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

19.8 cm

Width

20.0 cm

Height

30.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Demonstration & teaching equipment

Sub-Category

N/A

Manufacturer

AKA

Queen

Country

United States of America

State/Province

Pennsylvania

City

Philadelphia

Context

Country

United States of America

State/Province

South Carolina

Period

Unknown

Canada

PART OF LARGE & VARIED COLLECTION OF OVER 7500 ELECTRICAL ITEMS ACQUIRED & DOCUMENTED BY ONTARIO HYDRO IN 1960S. COLLECTION WAS THOUGHT TO BE LARGEST & MOST COMPREHENSIVE IN CANADA & WAS DONATED TO NMST IN 1992.

Function

INSTRUMENT USED TO MEASURE QUANTITY OF ELECTRICAL CHARGE.

Technical

EXAMPLE OF BALLISTIC GALVANOMETER WHICH LIKE OTHER GALVANOMETER HAS COIL WHICH ROTATES BETWEEN MAGNETS BUT DIFFERS IN HAVING LARGE MOMENT OF INERTIA. THIS ENABLES IT TO BE USED TO MEASURE QUANTITY OF CHARGE RATHER THAN CURRENTS (REF. 2).

Area Notes

Unknown

Details

Markings

INCISED WHITE LETTERING ON BASE READS "Queen & Co. Makers/ Philad.a/ 27E"

Missing

APPEARS COMPLETE

Finish

BLACK BASE/ DARK FINISHED CASING WITH GOLD COLOURED EDGING, FEET/ BLACK SYNTHETIC/ GREEN WIRE COVERING

Decoration

N/A