Microphone

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Ingenium, 1992.0048.001
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OBJECT TYPE: CRYSTAL/TABLE
DATE: 1940–1949
ARTIFACT NUMBER: 1992.0048.001

MANUFACTURER: Canadian Astatic Ltd.
MODEL: D-104
LOCATION: Toronto, Ontario, Canada

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: MACHINED BRASS CASE WITH HEAVY WOVEN DIAPHRAGM PROTECTIVE SCREEN, CLOTH WIND SCREEN COVER/ INTERNAL: STRETCHED ALUMINUMDIAPHRAGM & ROCHELL SALT CRYSTAL/ CORD & CONNECTOR

Dimensions

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

Length: N/A
Width: 8.0 cm
Height: 22.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

AKA: Astatic
Country: Canada
State/Province: Ontario
City: Toronto

Context

Country: North America
State/Province: Unknown
Period: LATE 1940'S TO 1980'S
Canada: MADE & USED IN CANADA
Function: TO PICK UP SOUND OR VOICE & CONVERT TO COMPLEX ALTERNATING CURRENT. THE AC WOULD BE AMPLIFIED TO MODULATE A RADIO TRANSMITTER.
Technical: TYPE SAMPLE OF SIMPLE & RELATIVELY INEXPENSIVE CRYSTAL MICROPHONE FOR GENERAL USE
Area Notes: Unknown

Details

Markings: MFR'S PLATE: 'CANADIAN ASTATIC LIMITED/ TORONTO CANADA/ MOD MADE IN CANADA/ D 104/ PATENT NOTICE INSIDE'/ ON BASE: 'E2 G'/ DYNATAPE: '2'
Missing: N/A
Finish: BLACK PAINTED BASE/ CHROMED MICROPHONE & SUPPORT POST/ GREY CORD/ WHITE CALL LETTERS
Decoration: WIRE COVER OVER AUDIO INTAKE

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

Canadian Astatic Ltd., Microphone, between 1940–1949, Artifact no. 1992.0048, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.0048.001/

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