Microphone

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Ingenium, 1990.0143.001
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OBJECT TYPE
CARBON/DOUBLE BUTTON
DATE
1925
ARTIFACT NUMBER
1990.0143.001
MANUFACTURER
NORTHERN ELECTRIC CO. LTD.
MODEL
R387
LOCATION
Canada

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
MACHINED STEEL NICKLE-PLATED BODY/ DURALUMINUM DIAPHRAGM/ BRASS BRIDGE/ CARBON BUTTONS/ MISC STEEL HARDWARE

Dimensions

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

Length
N/A
Width
8.5 cm
Height
5.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Radio
Sub-Category
N/A

Manufacturer

AKA
NORTHERN ELECTRIC
Country
Canada
State/Province
Unknown
City
Unknown

Context

Country
North America
State/Province
Unknown
Period
1926 TO 1940
Canada
MADE IN CANADA/ USED IN EARLY CANADIAN BROADCASTING
Function
USED TO PICK UP SOUND, SUCH AS VOICE, MUSIC ETC. AND CONVERT IT TO COMPLEX ALTERNATING CURRENTS WHICH ARE AMPLIFIED AND TRANSMITTED AS RADIO SIGNALS
Technical
ONE OF THE SERIES OF DOUBLE-BUTTON CARBON MICS WITH STRETCHED DIAPHRAGMS INTRODUCED BY WESTERN ELECTRIC IN 1920/ THEY HAD IMPROVED SOUND QUALITY BUT HAD REDUCED SENSITIVITY SO REQUIRED MORE AMPLIFICATION
Area Notes
Unknown

Details

Markings
STAMPED: 'NORTHERN ELECTRIC/ COMPANY LIMITED/ 1919. 1924. 1926./ R387'/ ON REVERSE SIDE: 'B'
Missing
MOUNTING HOOKS AROUND EDGE
Finish
NICKLE PLATED
Decoration
N/A

CITE THIS OBJECT

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

NORTHERN ELECTRIC CO. LTD., Microphone, circa 1925, Artifact no. 1990.0143, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1990.0143.001/

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