General Information

Serial #

1000426

Part Number

1

Total Parts

4

AKA

N/A

Patents

N/A

General Description

METAL CASES AND LIDS/ METAL TOP AND CONTACT BUTTONS/ SYNTHETIC CONTROL KNOBS

Dimensions

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

Length

25.0 cm

Width

25.0 cm

Height

15.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Electricity

Sub-Category

N/A

Manufacturer

AKA

Leeds Northrup

Country

United States of America

State/Province

Pennsylvania

City

Philadelphia

Context

Country

North America

State/Province

Unknown

Period

USED IN THE 1970S AND 1980S

Canada

USED IN THE ATOMIC BEAM LAB AT NRC'S SUSSEX DRIVE LABS IN OTTAWA IN COMBINATION WITH A VARIETY OF EXPERIMENTAL EQUIPMENT. DR. GERHARD HERZBERG WAS ASSOCIATED WITH (I.E. DIRECTOR) THE LAB FOR MANY YEARS.

Function

USED TO MEASURE RESISTANCE IN AN ELECTRICAL CIRCUIT BY COMPARING IT WITH STANDARDS OF KNOWN RESISTANCE.

Technical

STANDARD TYPES OF DECADE RESISTANCE BOXED FOR LABORATORY USE IN EXPERIMENTS. BASIC DESIGN HAS NOT CHANGED IN DECADES THOUGH THE MATERIALS, ESPECIALLY THE CASE, HAVECHANGED. (REF 1)

Area Notes

Unknown

Details

Markings

MFG'S PLATE ON TOP PANEL: 'LEEDS & NORTHRUP CO./ PHILADELPHIA PENNSYLVANIA/ MADE IN U.S.A./ CAT. NO./ 4716/ SERIAL NO./ 1000426'/ PRINTED ON FRONT OF CASE: 'LEEDS LN[LOGO] NORTHRUP'/ MARKED AROUND EACH DECADE MEASURE: '0' TO '9'/ MARKED ON TOP OF CONTROL KNOBS:1/ 10/ 100/ 1000'/ OTHER MARKINGS ON PANEL: 'abs' 'GR.'

Missing

APPEARS COMPLETE

Finish

CASE AND LID DARK GREY/ TOP PANEL GLOSSY BLACK/ CONTROL KNOB GLOSSY BLACK/ CONTACT KNOBS AND PLATES UNFINISHED METAL

Decoration

HORIZONTAL RIDGES AROUND BOTTOM ONE QUARTER OF CASE WITH A VERTICAL STRIP AT FRONT LEFT PORTION OF CASE BOTTOM CONTAINING COMPANY LOGO