demonstration "AC" voltmeter
Date1928
Inventory Number1997-1-1069
ClassificationVoltmeter
Subject
Maker
Weston Electrical Instrument Corporation
founded 1888
Place of Origin
Dimensions18 × 19 × 8 cm (7 1/16 × 7 1/2 × 3 1/8 in.)
blue board box: 10.2 × 49.5 × 43.2 cm (4 × 19 1/2 × 17 in.)
blue board box: 10.2 × 49.5 × 43.2 cm (4 × 19 1/2 × 17 in.)
Accessories0
Curatorial Remarksfrom Chem Lab Jan 1981; for Convers Lab for Covers Lab; P.T. Raro Volts for Full Scale: 30 Patented Oct 4, 1898, No. 811722, other patents pending
Weston Electrical Instrument Corporation
Date: 1930-1960
Accessories: original cardboard box
Object number: WJ1278
Weston Electrical Instrument Corporation
Date: 1930-1960
Accessories: original cardboard box
Object number: WJ1280
Weston Electrical Instrument Corporation
Date: 1930-1960
Accessories: original cardboard box
Object number: WJ1282
Weston Electrical Instrument Corporation
Object number: WJ0374
Weston Electrical Instrument Corporation
Date: 1920-1930
Accessories: standardization card from the A.S. Mancib Co.
Object number: WJ0951
Weston Electrical Instrument Corporation
Date: 1900-1930
Accessories: standardization certificate on inner surface of lid
Object number: 1997-1-1183
Weston Electrical Instrument Corporation
Date: circa 1921
Accessories: petri dish (1997-1-1059b) containing three loose binding posts, short lengths of wires, and an array of small mismatched screws, bolts, and washers
Object number: 1997-1-1059a,b
Weston Electrical Instrument Corporation
Date: 1911
Accessories: shunt (0438b)
Object number: 0438a