cathode-ray oscilloscope
Datecirca 1948
Inventory Number1999-1-0039a
ClassificationOscilloscope
Subject
Maker
Allen B. Du Mont Laboratories, Inc
1931 - 1960
Cultural Region
Place of Origin
Dimensions37.3 x 22.8 x 52.5 cm (14 11/16 x 9 x 20 11/16 in.)
Material
DescriptionThis light gray metallic box has several dials and switches in order to adjust the frequency signals on the X and Y axes. A handle on the top was used to carry the instrument around. The manner in which the signal is displayed on the screen is based on the same cathode-ray technology later used in television sets. Allen B. DuMont was in fact a pioneer of such technology.
It is equipped with a 5ADP-cathode-ray tube with 3000 volts accelerating potential. It also has provision for balanced or single-ended vertical/horizontal input signals and provision for Z-axis modulation. It possesses an internally regulated transformer and a regulated high voltage supply. It can sweep ranges from 2 to 30,000 cps.
The "JMH" scratched on the face are the initials of the donor, who used this instrument in psychological researches.
It is equipped with a 5ADP-cathode-ray tube with 3000 volts accelerating potential. It also has provision for balanced or single-ended vertical/horizontal input signals and provision for Z-axis modulation. It possesses an internally regulated transformer and a regulated high voltage supply. It can sweep ranges from 2 to 30,000 cps.
The "JMH" scratched on the face are the initials of the donor, who used this instrument in psychological researches.
Signedon front: ALLEN B. DUMONT LABORATORIES, INC
FunctionUsed to provide accurate time and amplitude of measurements of voltage signals over a wide range of frequencies.
ProvenanceProfessor John Michael Harrison, Department of Psychology, Boston University, pre-1998; gift to CHSI, 1999.
Allen B. Du Mont Laboratories, Inc
Date: 1950-1960
Accessories: laboratory notes (in CHSI library)
Object number: 1997-1-0489
Allen B. Du Mont Laboratories, Inc
Date: 1940-1941
Object number: 1997-1-0490
Tektronix, Inc.
Date: circa 1960
Accessories: power cord; instruction manual; note (inside manual)
Object number: 2008-1-0111
Allen B. Du Mont Laboratories, Inc
Date: 1940-1960
Object number: 1999-1-0003
Cruft Laboratory, Harvard University
Date: 1930-1960
Object number: 1998-1-0958
International Business Machines Corporation
Date: 1956
Object number: 2023-1-0008
International Business Machines Corporation
Date: 1956
Object number: 2023-1-0008a
International Business Machines Corporation
Date: 1956
Object number: 2023-1-0008b
Edgerton, Germeshausen & Grier
Date: 1965-1970
Object number: 2003-1-0295
