Test set, research
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1980.0385.001
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- OBJECT TYPE
- MEGOHMMETER
- DATE
- 1936
- ARTIFACT NUMBER
- 1980.0385.001
- MANUFACTURER
- General Radio Co.
- MODEL
- 487-AS2
- LOCATION
- Cambridge, Massachusetts, United States of America
More Information
General Information
- Serial #
- 197
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- CASE, WOOD WITH ALUMINUM PANEL, 2 VACUUM TUBES, POWER TRANSFORMER, PRECISION RESISTORS, ROTARY SWITCH, ZERO SET POTETIOMETER, CALIBRATION POTENTIOMETER/ TWO THUMB SCREW TERMINAL CONNECTOR, TWO KNOBS, TOGGLE SWITCH, INDICATOR LAMP AND 4-1/2" ROUND MICROAMMETER
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 25.3 cm
- Width
- 20.4 cm
- Height
- 14.3 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
- General Radio
- Country
- United States of America
- State/Province
- Massachusetts
- City
- Cambridge
Context
- Country
- North America
- State/Province
- Unknown
- Period
- 1936-1960
- Canada
-
USED IN RESEARCH AT NRC - Function
-
USED TO MEASURE CURRENT LEAKAGE IN TRANSFORMER INSULATION, CAPACITORS, INSULATING MATERIAL AND OTHER ELECTRICAL/ELECTRONIC COMPONENTS - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- PRINTED ON FRONT: 'MEGOHMMETER/ TYPE 487-AS2 SERIAL NO. 197/ GENERAL RADIO CO./ CAMBRIDGE MASS. U.S.A.'/ PLATE: '115 VOLTS/ 25'/ METER: 'MEGOHMS/ GENERAL RADIO CO./ MF'D BY WESTON/ MODEL 643 NO.6052/ GR 588-300'/ DECAL ON FRONT: 'NATIONAL RESEARCH COUNCIL/ RADIO AND EE DIV./ INSTRUMENT NO./ R858'
- Missing
- POWER CORD
- Finish
- LIGHT VARNISH STAIN CASE. SIMULATED BLACK LEATHER GRAIN ENAMEL PANEL. BLACK BAKELITE METER CASE,BLACK KNOBS
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
General Radio Co., Test set, research, circa 1936, Artifact no. 1980.0385, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1980.0385.001/
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