D.C. voltmeter, 0-2 KV
Date1945-1960
Inventory NumberWJ1297
ClassificationVoltmeter
Subject
Maker
General Electric Company
1892-present
Associate Name(contractor)
United States Navy
founded 1775
User
Psycho-Acoustic Laboratory, Harvard University
?
1940 - 1962
User
Department of Psychology, Harvard University
founded 1934
Cultural Region
Place of Origin
Place of Use
Dimensionsbox: 7.3 × 8.6 × 8.6 cm (2 7/8 × 3 3/8 × 3 3/8 in.)
6.4 × 6.4 × 5.7 cm (2 1/2 × 2 1/2 × 2 1/4 in.)
6.4 × 6.4 × 5.7 cm (2 1/2 × 2 1/2 × 2 1/4 in.)
Material
Accessoriesoriginal cardboard box; small sealed envelope of hardware
DescriptionSmall, round General Electric D.C. voltmeter, U.S.N. (United States navy) type CG-22270, DW-41, model 8DW41. The round instrument display window has matte-finish anti-glare glass, and the dial is marked from 0 to 2.0, D.C. kilovolts. The dial has a center-mounted needle pointer.
Object box includes a small sealed envelope of hardware.
Object box includes a small sealed envelope of hardware.
SignedOn dial: General Electric
InscribedInstrument dial: D-C. KILOVOLTS / RESISTOR EXTERNAL / GENERAL ELECTRIC/U.S.N. TYPE CG-22070/TYPE DW-41/MODEL 8DW41/F.S.A. =.001/NP 60961/NO. 8-C-740 / MADE IN U.S.A.;
Barrel of meter stamped: P7761557PT[?];
Base of meter stamped with the anchor logo of the United States Navy, and the serial number: 4120398 / BIN;
Label on side of box: GENERAL ELECTRIC/MINIATURE INSTRUMENT/TYPE 8DW MODEL 41VET202/RATING 2 KV/REQ BPWR 19832/REMARKS AA/SCHENECTADY, N.Y.;
Stamp on top of box: OK
Inscribed on the dial face is, "D.C. KILOVOLTS / 0-2.0 / RESISTOR EXTERNAL / GENERAL ELECTRIC (with centered logo between words) / U.S.N. TYPE CG-22270 / TYPE DW-41 MODEL / F.S.A. = .001 8DW-41 / NP 60961 NO. 8-C-740 / MADE IN (?)"
On the reverse side, the instrument is marked in raised letters, "4120398," "BIN" and "BN" marked in white, and some illegible painted markings in yellow.
A printed paper label on the side of the cardboard box reads, "GENERAL ELECTRIC (with centered logo between words) / MINIATURE INSTRUMENT / TYPE MODEL / RATING / REQ. / REMARKS / SCHENECTADY, N.Y. / N.P. 97629 / MADE IN U.S.A."
Curatorial RemarksLikely made in Bridgeport, CT, like other GE meters with the same provenance. GE acquired the Bridgeport plant after World War II.
Probably used in the Psycho-Acoustic Laboratory. See inscriptions on instrument WJ1288.
FunctionElecrtrical measurement.
ProvenanceFrom William James Hall, Harvard University.
General Electric Company
Date: 1945-1960
Accessories: cardboard box; small sealed envelope of hardware
Object number: WJ1281
General Electric Company
Date: 1945-1960
Accessories: cardboard box
small folded paper envelope inside box marked P-4142407 Gr 2, containing three(3) 2cm flathead screws, four(4) 1cm nuts, three(3) .5cm nuts, four(4) .75cm washers, two(2).6cm washers, three(3).3cm washers
Object number: WJ1264
General Electric Company
Date: 1930-1950
Accessories: Paper envelope with printed lettering: P-4142407 Gr.2, containing assorted screws, nuts, & washers, within box beneath object.
Object number: WJ1268
General Electric Company
Date: 1945-1960
Accessories: plain cardboard box (with inscriptions)
Object number: WJ1262
Simpson Electric Company
Date: 1940-1960
Accessories: original cardboard box
Object number: WJ1261
Simpson Electric Company
Date: 1940-1960
Accessories: plain cardboard box (with inscriptions)
Object number: WJ1287
Triplett
Date: 1930-1950
Accessories: plain cardboard box fitted for this meter; small sealed envelope of hardware
Object number: WJ1276
Weston Electrical Instrument Corporation
Date: 1940-1960
Accessories: original cardboard box; small sealed envelope of hardware
Object number: WJ1277
Date: circa 1935
Accessories: four brochures for the Lightning Calculators, types A - D in library (Lib.4598a-d)
Object number: 1998-1-1349
Weston Electrical Instrument Corporation
Date: 1894
Accessories: Weston portable multiplier (0279b); standardization certificate on back of lid
Object number: 0279a
Triplett
Date: 1930-1960
Accessories: cardboard box (not original, WESTON)
Object number: WJ1266