General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CAST NON FERROUS METAL, PROBABLY WHITE METAL, CASE & MOUNTING RING/ INTERNAL COMPONENTS INCLUDE A STRETCHED ALUMINUM DIAPHRAGM. CARBON GRANULES CONTAINED IN THE SINGLE BUTTON AND MISC. HARDWARE. THE MICROPHONE IS SUPPORTED IN THE MOUNTING RINGBY STEEL STRINGS.

Dimensions

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

Length

N/A

Width

12.6 cm

Height

19.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Communications

Category

Sound

Sub-Category

N/A

Manufacturer

AKA

American Microphone

Country

United States of America

State/Province

California

City

Los Angeles

Context

Country

North America

State/Province

Unknown

Period

1930-1940

Canada

USED IN CANADA

Function

TO PICK UP SOUND, VOICE, AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT WOULD BE AMPLIFIED TO MODULATE A RADIO TRANSMITTER OR TO DRIVE SPEAKERS.

Technical

AN EXAMPLE OF LOW COST MICROPHONE TECHNOLOGY OF THE LATE 1920'S AND EARLY 1930'S. THE TECHNOLOGY WAS ACCEPTABLE FOR RADIO AND SOUND SYSTEMS VOICE COMMUNICATION.

Area Notes

Unknown

Details

Markings

STAMPED ON BACK OF MIKE: 'AMERICAN/ MICROPHONE/ LOS ANGELES, U.S.A./ MADE IN U.S.A./ MODEL/ SJ'/ DECAL ON BASE: 'AMERICAN MICROPHONE CO. INC. LOS ANGELES USA'

Missing

N/A

Finish

CHROME PLATED. MICROPHONE CORD IS NATURAL BLACK RUBBER. THE PLUG IS NATURAL BRASS WITH A BLACK BAKELITE COVER.

Decoration

DECAL ON BASE - RED & GOLD WITH BLACK PRINTING. BIRD DRAWING IN CENTRE.