Accession No

4330

Brief Description

double, low frequency oscillograph, Duddell type II (early model), by Cambridge Scientific Instrument Company Ltd., English, c. 1905

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Accession No

2603

Brief Description

Aryton and Perry’s variable standard inductor by Nadler Brothers, 1900–1910

Origin

London; England

Maker

Nadler Brothers

Accession No

4275

Brief Description

moving coil, reflecting galvanometer, D'Arsonval type, by Robert W. Paul, English, circa 1912

Origin

England; London

Maker

Paul, Robert W.

Accession No

4338

Brief Description

Duddell permanent magnet oscillograph, Duddell type II (lacking magnet), by Cambridge Instrument Company Ltd., English, 1928

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Accession No

1333

Brief Description

moving magnet, reflecting galvanometer, by Elliott Brothers, English, 1870-1880 (c)

Origin

England; London

Maker

Elliott Brothers

Accession No

2747

Brief Description

wheel train for Maxwell’s pendulum governor, for rapid revolution by means of a pendulum, designed by James Clerk Maxwell, 1863 (c)

Origin

Maker

Accession No

5840

Brief Description

Marksman Micro solar-powered calculator in the shape of a computer disk with cardboard case and owners manual, attributed to Inmac, U.S.A., 20th Century

Origin

U.S.A. [attributed]

Maker

Inmac [attributed]

Accession No

2321

Brief Description

section of telegraph cable, 1874

Origin

Maker

Telegraph Construction & Maintenance Company Limited

Accession No

4331

Brief Description

double, permanent magnet oscillograph, Duddell type III (early model), by Cambridge Scientific Instrument Company Ltd., English, c. 1904

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Accession No

2026

Brief Description

valve, 1/2 20th C

Origin

Maker