vacuum tubes for cathode-ray oscilloscope
Datecirca 1948
Inventory Number1999-1-0039c
ClassificationVacuum Tube
Subject
Manufacturer
Radio Corporation of America
1919-present
Maker
Allen B. Du Mont Laboratories, Inc
1931 - 1960
Manufacturer
General Electric Company
1892-present
Cultural Region
Place of Origin
Dimensionsbox: 8 × 23 × 27 cm (3 1/8 × 9 1/16 × 10 5/8 in.)
Material
DescriptionBox containing ~ 33 tubes vacuum tubes, some in plastic bags, some in small, individual boxes, and some loose. There is a list in the box.
Signedon boxes: GE
on boxes: RCA
FunctionFor use with the DuMont cathode-ray oscilloscope type 350.
ProvenanceProfessor John Michael Harrison, Department of Psychology, Boston University, pre-1998; gift to CHSI, 1999.
Zeiss-Aerotopograph
Date: circa 1950
Accessories: in wooden storage case with metal handles; documentation booklet is now kept in the instrument's file; all other accessories are kept in the box and are included in the description.
Object number: 2009-1-0002b
Ernst Leitz (company)
Date: 1951-1960
Accessories: Two Compens 10x eyepieces; two Zeiss 10x eyepieces; many loose square filters (sized to fit in slots in eyepiece), some in felt bags; eight similar filters mounted in rectangular black metal frames marked (on masking tape) A1, A2, A3, A4, B1, B2, B3, B4; two larger rectangular glass mirrors.
Object number: 2007-1-0084
George Gilbert Rakestraw
Date: 1878-1905
Accessories: microscope in its box (2004-1-0339b) ; bullseye condensers (2003-1-0339c,d); mineralogy books (in the CHSI library)
Object number: 2004-1-0339a
Sylvania
Date: late 19th-early 20th Century
Object number: RS0368
David W. Latham
Date: 1979
Accessories: filters, slit eyepiece, Hartman mask, micrometers
Object number: 2023-1-0007
Polaroid Corporation
Date: 2003
Accessories: printer ribbon, power cable, adapter cable, original packing materials, instruction manuals (in object file), and gray card (in object file)
Object number: 2009-1-0039
Robert B. Tolles
Date: 1860-1874
Object number: 1045a-v
Radio Corporation of America
Date: 1920-1930
Accessories: red cardboard cylinder case
Object number: VT5195
Radio Corporation of America
Date: 1923
Object number: RS0039
Date: 1890-1930
Object number: RS0505
