Standard resistor

Use this image

Can I reuse this image without permission? Yes

Object images on the Ingenium Collection’s portal have the following Creative Commons license:

Copyright Ingenium / CC BY-NC-ND (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

ATTRIBUTE THIS IMAGE

Ingenium, 2004.0372.002
Permalink:

Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.

DOWNLOAD IMAGE

PURCHASE THIS IMAGE

This image is free for non-commercial use.

For commercial use, please consult our Reproduction Fees and contact us to purchase the image.

OBJECT TYPE
N/A
DATE
Unknown
ARTIFACT NUMBER
2004.0372.002
MANUFACTURER
Leeds & Northrup Co.
MODEL
4035-B
LOCATION
Philadelphia, Pennsylvania, United States of America

More Information


General Information

Serial #
1723477
Part Number
2
Total Parts
12
AKA
N/A
Patents
N/A
General Description
metal casing and terminals/ synthetic top

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
9.5 cm
Width
5.0 cm
Height
17.4 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Energy-electric
Category
Measurement
Sub-Category
N/A

Manufacturer

AKA
Leeds Northrup
Country
United States of America
State/Province
Pennsylvania
City
Philadelphia

Context

Country
Canada
State/Province
Ontario
Period
Unknown
Canada
An instrument used in the Calibration Unit of the Instrument Division of the Meteorological Branch of the Department of Transport of the Government of Canada. The Meteorological Branch became the Atmospheric Environment Service in 1971 and so this instrument was probably manufactured before that date. Part of a large collection of meteorological instruments acquired from the Meteorological Service of Canada (previously Atmospheric Environment Service) by the CSTM since 1967. MSC is the government agency responsible for collecting and disseminating meteorological data and forecasts in Canada. It was founded in 1871 in Toronto where it is still headquartered. The MSC was originally on the University of Toronto downtown campus but moved to Downsview in 1971 on land owned by UofT. The headquarters houses laboratories, research facilities and calibration and instrument maintenance facilities (now largely contracted out).
Function
A standard resistor is a resistor adjusted with high accuracy to a specified value, is little affected by variations in temperature and is substantially constant over long periods of time; this instrument was used in a meteorology instrument calibration unit to calibrate digital meteorological instruments such as barometers and thermometers.
Technical
An example of a standard resistance used for calibrating instruments. Leeds and Northrup's 1940 and 1946 catalogues list resistance model numbers 4020 to 4040 National Bureau of Standards type resistors, described as primary standards of resistance (Refs. 1-2). The 2030-B to 4045-B resistors would have been introduced at a later date. This type of resistance has four terminals with the heavy outer current terminals connected into the circuit and the lighter, inner terminals used to measure the potential drop. The resistance coils are mounted in oil in hermetically-sealed metal cases (Ref. 3).
Area Notes
Unknown

Details

Markings
incised white lettering on top reads '1000 OHMS/ CAT. 4035-B/ LEEDS & NORTHRUP CO./ PHILA, PA. MADE IN U.S.A./ 1723477'/ label on casing reads ‘GOVERNMENT OF CANADA/ METEOROLOGICAL BRANCH/ INSTRUMENT DIVISION/ CALIBRATION UNIT/ C16-067B/ DEPARTMENT OF TRANSPORT'/ inventory label reads ‘ASCL JAN 84/ DS-0115/ label reads ‘CALIBRATION/ BY NRC DATE 04/87/ DUE 1000.002'/ gold label reading ‘Environment Canada/ Environnement Canada/ Atmospheric Environment/ Environnement atmospheric'
Missing
appears complete
Finish
grey painted casing with plated parts/ black synthetic
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Leeds & Northrup Co., Standard resistor, Unknown Date, Artifact no. 2004.0372, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2004.0372.002/

FEEDBACK

Submit a question or comment about this artifact.

More Like This


...
Standard resi…

2004.0372.005

Object

...
Standard resi…

2004.0372.001

Object

...
Standard resi…

2004.0372.006

Object

...
Standard resi…

2004.0372.003

Object

...
Standard resi…

2004.0372.004

Object

...
Standard resi…

2004.0373.001

Object

...
Standard resi…

2004.0373.002

Object

...
Standard resi…

2004.0373.003

Object

...
Resistor

2004.0376.001

Object

...
Standard, tem…

2004.0369.001

Object

...
Standard, tem…

2004.0370.001

Object

...
Case, instrum…

2004.0326.016

Object

...
Gauge kit

2004.0381.001

Object

No image available.
Thermometer

2004.0372.012

Object

No image available.
Thermometer

2004.0373.006

Object

...
Sensor, tempe…

2004.0326.013

Object

...
Sensor, tempe…

2004.0326.014

Object

...
Thermometer

2004.0372.007

Object

No image available.
Thermometer

2004.0372.008

Object

No image available.
Thermometer

2004.0372.009

Object

No image available.
Thermometer

2004.0372.010

Object

No image available.
Thermometer

2004.0372.011

Object

...
Thermometer

2004.0373.004

Object

No image available.
Thermometer

2004.0373.005

Object

...
Calibrator, t…

2004.0315.001

Object

...
Sensor, tempe…

2004.0327.001

Object

...
Cell, standard

2004.0377.001

Object

...
Case, instrum…

2004.0326.015

Object

...
Conversion kit

2004.0382.001

Object

...
Magnifier

2004.0379.001

Object

...
Case, instrum…

2004.0369.003

Object

...
Transformer

2004.0380.003

Object

...
Illuminometer

2004.0348.001

Object

...
Inductor

2004.0375.001

Object

...
Barometer

2004.0366.001

Object

...
Illuminator

2004.0380.001

Object

...
Capacitor

2004.0374.003

Object

...
Capacitor

2004.0374.004

Object

...
Galvanometer

1987.0865.001

Object

...
Capacitor

2004.0374.001

Object

...
Capacitor

2004.0374.002

Object

...
Manometer

2004.0363.001

Object

...
Voltmeter

2004.0378.001

Object

...
Potentiometer

1987.0866.001

Object

...
Calibrator, b…

2002.0343.001

Object

...
Standard, len…

2004.0371.001

Object

...
Barograph

2004.0362.001

Object

...
Barometer

2004.0368.001

Object

...
Barometer

2002.0342.001

Object

...
Box, resistan…

1987.0864.001

Object

...
Thermometer

2004.0321.001

Object

...
Graduate

2004.0329.001

Object

...
Sensor, tempe…

2004.0319.001

Object

...
Scale, sunshi…

2009.0130.001

Object

...
Barometer

2004.0365.001

Object

...
Hub, anemomet…

2009.0128.001

Object

...
Thermometer

2004.0326.001

Object

...
Thermometer

2004.0326.002

Object

...
Thermometer

2004.0326.003

Object

...
Thermometer

2004.0326.004

Object

...
Thermometer

2004.0326.005

Object

...
Thermometer

2004.0326.006

Object

...
Thermometer

2004.0326.007

Object

...
Thermometer

2004.0326.008

Object

...
Thermometer

2004.0326.009

Object

...
Thermometer

2004.0326.010

Object

...
Thermometer

2004.0326.011

Object

...
Thermometer

2004.0326.012

Object

...
Psychrometer

2004.0320.001

Object

...
Standard, tem…

2004.0314.001

Object

...
Holder, therm…

2004.0319.002

Object

...
Grid, weather…

2009.0133.001

Object

...
Pyrheliometer

2004.0345.001

Object

...
Sensor, preci…

2004.0333.001

Object

...
Manometer

2002.0344.001

Object

...
Regulator

2004.0357.001

Object

...
Battery

2009.0127.002

Object

...
Barograph

2004.0362.002

Object

...
Rule

2004.0331.001

Object

...
Thermometer

2004.0325.001

Object

...
Thermometer

2004.0322.001

Object

...
Mount, radiom…

2004.0316.001

Object

...
Thermometer

2004.0324.001

Object

...
Radiosonde

2004.0361.001

Object

No image available.
Map

2007.0225.001

Object

...
Map

2009.0134.001

Object

...
Map

2009.0134.002

Object

...
Map

2009.0134.003

Object

...
Map

2009.0134.004

Object

...
Radiosonde

2009.0127.001

Object

...
Thermometer

2004.0323.001

Object

...
Barometer

2002.0336.001

Object

...
Barometer

2004.0367.001

Object

...
Rule

2004.0335.001

Object

...
Barometer

2002.0343.002

Object

...
Barometer

2002.0337.001

Object

...
Bridge, Wheat…

1987.0859.001

Object

...
Pyrheliometer

2004.0344.001

Object

...
Graduate

2004.0334.002

Object

...
Bathythermogr…

2004.0317.001

Object