General Information

Serial #

772585

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

All iron (or steel?) body/ glass window/ brass binding posts/ paper scale.

Dimensions

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

Length

19.1 cm

Width

18.4 cm

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

General Electric

Country

United States of America

State/Province

New York

City

Schenectady

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Switchboard voltmeters such as this one were widely used in Canada and in the United States during the early 1900s in the electrical industry.

Function

Measures DC voltage in volts.

Technical

Permanent magnet moving coil type DC switchboard voltmeter. Magnetically shielded. The very large opening for the screen allows in a lot of light and thus increases the visibility of the scale. Switchboards often had poor lighting, and even in good lighting conditions this kind of design feature could increase from how far away the operator could read the meter. As one operator needed to be able watch over a very large number of meters at one time, this was an important property.

Area Notes

Unknown

Details

Markings

On face: 'GE [Company logo]' ; On scale: 'D.C. VOLTS/ GENERAL ELECTRIC CO. U.S.A./ NO. 772585/ TYPE D-8'

Missing

Interior vandalized; Needle apparatus removed and installed in bicycle generator.

Finish

Black japan finish; brass flashing.

Decoration

N/A