General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

METAL COIL, WRAPPED IN PAPER SLEEVE, WRAPPED AGAIN IN TISSUE PAPER;

Dimensions

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

Length

3.6 cm

Width

3.6 cm

Height

1.5 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

Cambridge

Country

England

State/Province

Unknown

City

Cambridge

Context

Country

Canada

State/Province

Ontario

Period

THIS COIL NEVER USED. THIS TYPE PROBABLY USED C. 1920+

Canada

PART OF COLLECTION OF PHYSICS LABORATORY AND CLASSROOM DEMONSTRATION APPARATUS FROM MCMASTER UNIVERSITY. FOUNDED IN 1887 MCMASTER WAS ORIGINALLY A BAPTIST INSTITUTION, AND WAS LOCATED IN TORONTO. IN 1930 THE UNIVERSITY AND ITS STUDENT POPULATION OF 500 WAS MOVED TO HAMILTON, ONT. ( REF. 1)

Function

USED TO REPLACE BROKEN OR DANAGED COIL ON VIBRATION GALVANOMETER.

Technical

EXAMPLE OF COILELEMENT FOR VIBRATION GALVANOMETER. VULNERABLE TO SHOCK, VIBRATION, OR DAMAGE DUE TO TOO-HIGH A CURRENT BEING PASSED THROUGH THE INSTRUMENT, PARTS LIKE THIS HAD TO BE REGULARLY REPLACED. SPARE COILS AND MIRRORS (SEE 980241) WERE ESSENTIAL COMPONENTS OF ANY PHYSICS LABORATORY. ( REF. 1)

Area Notes

Unknown

Details

Markings

NONE

Missing

NONE.

Finish

SILVER AND DARK FINISHES/ UNBLEACHED PAPER SLEEVE AND WRAPPING

Decoration

N/A