Test set, resistance

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Ingenium, 1988.1177.001
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OBJECT TYPE: VACUUM TUBE OHMETER
DATE: 1950
ARTIFACT NUMBER: 1988.1177.001

MANUFACTURER: Berkeley Scientific, Div. of Beckman Instruments Inc.
MODEL: Unknown
LOCATION: Richmond, California, United States of America

More Information

General Information

Serial #: 176
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: WOODEN CASE/ INTERNAL COMPONENTS INCLUDE, SHEET METAL SUB CHASSIS, VACUUM TUBE, RESISTORS, CAPACITORS, DIODES, POTENTIOMETER, SWITCHES, MICROAMMETER, MISC. WIRING AND BATTERY CONNECTORS, cellulose nitrate

Dimensions

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

Length: 22.0 cm
Width: 22.0 cm
Height: 13.7 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Forestry
Category: Silviculture
Sub-Category: N/A

Manufacturer

AKA: Berkeley
Country: United States of America
State/Province: California
City: Richmond

Context

Country: North America
State/Province: Unknown
Period: 1950-1960
Canada: Unknown
Function: MEASURES ELECTRICAL RESISTANCE. THIS PARTICULAR SET WAS PROBABLY ADAPTED TO MEASURE THE ELECTRIC RESISTANCE OF WOOD AND TEMPERATURE. THE MEASUREMENT WHEN COMPARED TO A STANDARD CURVE, "RESISTANCE/TEMPERATURE" VERSUS MOISTURE, PROVIDES MOISTURE CONTENT OF THE WOOD BEING MEASURED.
Technical: Unknown
Area Notes: Unknown

Details

Markings: MFG. PLATE: 'BerkeleyScientific/ div. of BECKMAN INSTRUMENTS INC./ RICHMOND CALIFORNIA/ VOLTS C.P.S. WATTS/ MODEL 300 SER NO 176'/ ON METER DIAL: 'WESTON ELEC. INST. CORP. NEWARK, NJ, U.S.A./ MICROAMPERES/ D.C./ WESTON/ MODEL 301'/ DESIGNATIONS ON KNOBS/ CHART IN LID READS: 'RESISTANCE OHMS/ DIAL READING IN MICROAMPERES/ SERIAL NO. 176/ DATE. 4-27-53/ IMPORTANT/ WHITE CLIP-TEMPERATURE/ RED CLIP-MOISTURE/ BLACK CLIP-COMMON'/ WRITTEN & SCRATCHED ON TOP: 'P.A. 47'
Missing: N/A
Finish: CASE, CLEAR VARNISH PANEL, LOW GLOSS GRAY ENAMEL. BLACK POINTER KNOBS, WHITE METER FACE WITH BLACK CALIBRATION
Decoration: N/A

CITE THIS OBJECT

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

Berkeley Scientific, Div. of Beckman Instruments Inc., Test set, resistance, circa 1950, Artifact no. 1988.1177, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1988.1177.001/

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