Microphone

Use this image

Can I reuse this image without permission? Yes

Object images on the Ingenium Collection’s portal have the following Creative Commons license:

ATTRIBUTE THIS IMAGE

Ingenium, 1971.0130.001
Permalink:

Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.

DOWNLOAD IMAGE

PURCHASE THIS IMAGE

This image is free for non-commercial use.

For commercial use, please consult our Reproduction Fees and contact us to purchase the image.

OBJECT TYPE: INDUCTOR/TABLE
DATE: 1935
ARTIFACT NUMBER: 1971.0130.001

MANUFACTURER: RCA
MODEL: 50A
LOCATION: Camden, New Jersey, United States of America

More Information

General Information

Serial #: 1953
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: BRASS CASE & HOLDER/ 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: 13.0 cm
Width: 10.0 cm
Height: 15.0 cm
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: 1940-1950
Canada: USED IN CANADA
Function: TO PICK UP SOUND, VOICE OR MUSIC, & CONVERT TO COMPLEX AC. THE ALTERNATING CURRENT IS AMPLIFIED & 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 TO THE RUGGED DESIGN OF A DIAPHRAGM MICROPHONE.
Area Notes: Unknown

Details

Markings: .1 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 ORSALES AGREEMENT/ RCA Victor Company Inc./ 28700 CAMDEN, N.J. U.S.A.'
Missing: NIL
Finish: REPAINTED 'BATTLESHIP' GRAY/
Decoration: N/A

CITE THIS OBJECT

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

RCA, Microphone, circa 1935, Artifact no. 1971.0130, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1971.0130.001/

FEEDBACK

Submit a question or comment about this artifact.