oil drip tray to hold resistance standards
Date: 1880-1910
Inventory Number: 0303
Classification: Resistance Standard
Subject:
User: Harvard Engineering School (1918 - 1951)
Maker: Otto Wolff ? (fl. 1870 - 1920)
Cultural Region:
Place of Origin:
City of Use:
Dimensions:
tray: 5.4 × 55.9 × 45 cm (2 1/8 × 22 × 17 11/16 in.)
Accessories: nine resistance standards and one bridge (0302a-i)
Description:
An oil drip tray to hold resistance standards used in electrical testing applications. Device is a rectangular brass tray with a removable grating inside, made of a row of brass rods. The outside is painted black and has a stopcock for draining fluids. Paint on the exterior of the tray is scuffed and scratched.
The tray is accompanied by nine resistance standards and a bridge. It is unmarked and unsigned, though the resistance standards were made by Otto Wolff, and the bridge has a metal label from Harvard Engineering School.
The tray is accompanied by nine resistance standards and a bridge. It is unmarked and unsigned, though the resistance standards were made by Otto Wolff, and the bridge has a metal label from Harvard Engineering School.
Signedunsigned
Curatorial RemarksWas first incorrectly catalogued as 1997-1-0225d, so slide shows it with that number.
ProvenanceFrom the School of Engineering, Harvard University.
