Microphone

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Ingenium, 1969.0815.001
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OBJECT TYPE: INDUCTOR
DATE: 1935
ARTIFACT NUMBER: 1969.0815.001

MANUFACTURER: RCA Victor Co. Ltd.
MODEL: 50A
LOCATION: Camden, New Jersey, United States of America

More Information

General Information

Serial #: B5694
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: BRASS CASE WITH THREADED RING & PERFORATED DIAPHRAGM COVER. INTERNAL COMPONENTS INCLUDE A MAGNET ASSEMBLY WITH A CORROGATED RIBBON SUPPORTED IN THE MAGNETIC FIELD.

Dimensions

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

Length: 8.3 cm
Width: 8.3 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

AKA: RCA
Country: United States of America
State/Province: New Jersey
City: Camden

Context

Country: North America
State/Province: Unknown
Period: 1936-1950
Canada: USED BY CBC-RADIO CANADA.
Function: TO PICK UP SOUND, VOICE OR MUSIC, AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT IS AMPLIFIED AND USED TO MODULATE A RADIO TRANSMITTER OR TO OPERATE A RECORDING DEVICE.
Technical: AN INTERESTING AND COMPLEX DESIGN THAT TRIED TO MARRY THE FREQUENCY RESPONSE OF A RIBBON MICROPHONE TOTHE RUGGED DESIGN OF A DIAPHRAGM MICROPHONE.
Area Notes: Unknown

Details

Markings: MFG'S PLATE: 'INDUCTOR MICROPHONE/ TYPE 50-A/ U.S. PATENTS/ 1557356 1639713/ 1569411 1885001/ 1637397 1892645/ DRAWING/ 600854-G3 REG. U.S. PAT. OFF./ MARCAS REGISTRADA/ SERIAL/ B5694/ LICENSED ONLY FOR USES AUTHORIZED IN LEASE OR SALES AGREEMENT/ RCA Victor Company, Inc./ 28700 CAMDEN, N.J. U.S.A.'/ OWNER'S PLATE; 'C.B.C./ RADIO-CANADA 194310'/ CONNECTOR: 'CANNON'
Missing: ONE MOUNTING THUMB NUT
Finish: BROWN ENAMEL
Decoration: N/A

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

RCA Victor Co. Ltd., Microphone, circa 1935, Artifact no. 1969.0815, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1969.0815.001/

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