AC ammeter
Date: circa 1930
Inventory Number: 1997-1-0704
Classification: Ammeter
Subject:
Maker: Weston Electrical Instrument Corporation (founded 1888)
Cultural Region:
Place of Origin:
Dimensions:
5.4 × 7.9 × 9.6 cm (2 1/8 × 3 1/8 × 3 3/4 in.)
Description:
An ammeter with a red and black bakelite body and a round face protected in glass. It has an arc-shaped scale with a range between 0 and 1 (amperes) and has a needle with a stylized tip. Below its round face it has an extension to its base with two electrical connectors with black bakelite caps. Its bakelite body has a crack.
For more technical information, read the lastest, 1927 patent here.
For more technical information, read the lastest, 1927 patent here.
Signedunder the scale: WESTON ELECTRICAL INSTRUMENT COMPANY, NEWARK, N.J., U.S.A." / MODEL [illegible] NO [illegible]
Inscribedabove scale: PAT. 1,579,849 1,597,256 1,661,214 1,714,065 1,714,202 / AMPERES A.C.
FunctionMeasures alternating electric current.