General Information

Serial #

1007491

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOODEN CASE WITH LID/ SYNTHETIC TOP PANEL AND KNOBS WITH METAL PARTS/ SYNTHETIC COVER ON GALVANOMETER WITH GLASS COVER OVER DIAL

Dimensions

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

Length

42.0 cm

Width

32.0 cm

Height

19.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

Leeds Northrup

Country

United States of America

State/Province

New Jersey

City

Newark

Context

Country

Canada

State/Province

Ontario

Period

PROBABLY USED IN THE 1950S

Canada

Unknown

Function

USED FOR THE RAPID TESTING OF AMMETERS, VOLTMETERS, AND WATTMETERS [REF 1]. THIS DEVICE IS USED WHERE THE POTENTIAL DIFFERENCE IS NOT SUFFICIENTLY STEADY TO PERMIT THE USE OF THE STANDARD TYPE OF INSTRUMENT& WHERE A HIGHER PRECISION THAN THAT OBTAINABLE WITH SECONDARY STANDARDS IS DESIRED [REF 3]

Technical

THIS IS AN INSTRUMENT WHICH COMBINES THE ACCURACY OF THE PRECISION POTENTIOMETER WITH THE SPEEDIER OPERATION OF THE DEFLECTION TYPEINSTRUMENTS [REF 2]

Area Notes

Unknown

Details

Markings

PRINTED ON PANEL: 'L&N [LOGO]/ DEFLECTION POTENTIOMETER/ MODEL 7/ LEEDS & NORTHRUP CO./ PHILADELPHIA/ 1007491/ MADE IN U.S.A.' '[DESIGNATIONS AROUND KBOS] - BATTERY +/ - VOLT BOX +/ - SHUNT +/ - STD. CELL +/ FINE RHEOSTAT COARSE/ E.M.F./ STD. CELL/ VOLT BOX SHUNT'/ [3 DIAL SCALES]: 0 [TO] 6 DIVIDED IN 5THS/ 1.018 [TO] 1.020/ 0 [TO] 150 DIVIDED IN 5S/ PLATE ON FRONT: 'DOMINION OF CANADA/ DEPT. OF TRADE AND COMMERCE/ STANDARDS DIVISION/ INSPECTION STANDARD NO L19'/ PLATE ON GALVANOMETER 'WESTON/ MODEL 440 NO. 15855/ WESTON ELECTRICAL INSTRUMENT CORP./ NEWARK, N.J., U.S.A.'

Missing

APPEARS COMPLETE

Finish

WOOD STAINED AND VARNISHED/ BLACK TOP PANEL AND KNOBS/ WHITE PRINTING ON PANEL

Decoration

N/A