Wall-mounted milli-ammeter

Description (Brief):

Milli-ammeter in wooden box screwed on brass base plate. Graduated 0 - 5 by fifths. Box dimensions: 5 1/8 x 5 1/8 x 2 1/2 deep. Brass plate: 5 7/8 x 5 1/8 x 3/16”. No patent date or number --apparently a laboratory construction.

Location: Currently not on view

See more items in: Work and Industry: Electricity


Exhibition Location:

Credit Line: Gift of Hilda P. Munroe

Data Source: National Museum of American History

Id Number: EM.314899Catalog Number: 314899Accession Number: 212171

Object Name: AmmeterOther Terms: Ammeter; Measuring Devices

Measurements: overall: 5 1/8 in x 5 1/8 in x 2 1/2 in; 13.0175 cm x 13.0175 cm x 6.35 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ab-8429-704b-e053-15f76fa0b4fa

Record Id: nmah_702738

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.