Test set, distortion

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OBJECT TYPE: DISTORTION/NOISE LEVEL
DATE: 1942
ARTIFACT NUMBER: 1993.0013.001

MANUFACTURER: Canadian Broadcasting Corp.
MODEL: Unknown
LOCATION: Montréal, Québec, Canada

More Information

General Information

Serial #: PROTOTYPE
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: SHEET STEEL CHASSIS/ WELDED CORNERS/ ALUMINUM FRONT PANEL/ GLASS COVER PLATE/ SYNTHETIC KNOBS/ GLASS, METAL & SYNTHETIC WORKING PARTS

Dimensions

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

Length: 48.0 cm
Width: 26.0 cm
Height: 22.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Radio
Sub-Category: N/A

Manufacturer

AKA: CBC
Country: Canada
State/Province: Québec
City: Montréal

Context

Country: Canada
State/Province: Unknown
Period: 1940'S & 1950'S
Canada: DESIGNED, DEVELOPED, PATENTED & BUILT IN CANADA (NOTE: CBC HAS KEPT PATENT APPLICATION)
Function: TO MEASURE NOISE LEVEL & DISTORTION IN AUDIO CIRCUITS
Technical: THIS UNIT WAS DESIGNED TO OVERCOME THE DIFFICULTIES IN USING THE THEN AVAILABLE INSTRUMENTS AND ALSO PARTIALLY TO OVERCOME THE DIFFICULTY OF ACQUIRING COMMERCIAL EQUIPMENT IN 1942
Area Notes: Unknown

Details

Markings: FRONT PANEL: 'FREQUENCY/ COARSE FINE/ WEIGHTING/ % DISTORTION-NOISE LEVEL DB/ BALANCE/ FINE/ COARSE/ RANGE/ CALIBRATE'/ [CALIBRATIONS AROUND KNOBS] METER FACE: 'PER CENT/ DECIBELS/ [CBC LOGO]/ [CALIBRATED]'
Missing: N/A
Finish: FRONT PANEL: DARK GREY SEMI-GLOSS ENAMEL/ CHASSIS: SILVER GRAY SEMI-GLOSS ENAMEL/ RED & BLACK KNOBS/ WHITE PRINTING
Decoration: N/A

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Canadian Broadcasting Corp., Test set, distortion, circa 1942, Artifact no. 1993.0013, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1993.0013.001/

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