General Information

Serial #

1237

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

ALUMINUM CASE; FABRIC SCREEN INSIDE HEAD; MICROPHONE ASSEMBLY CONTAINS A MAGNET WITH A CORRUGATEDDURALUMINUM RIBBON HUNG IN THE MAGNETIC FIELD, BRASS THUMB NUTS ON YOKE ASSEMBLY

Dimensions

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

Length

10.2 cm

Width

33.0 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

C.1934-1945

Canada

Unknown

Function

TO PICK UP SOUND, VOICE & MUSIC AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT WOULD BE AMPLIFIED TO MODULATE A RADIO BROADCAST TRANSMITTER.

Technical

FIRST MICROPHONE TYPE DESIGNED WITH A UNI-DIRECTIONAL OR CARDIOD PICKUP PATTERN. IT OFFERED FREQUENCY RESPONSE FROM 60 CYCLES TO 10,000 CYCLES AND A PICK-UP ANGLE OF 150 DEGREES.

Area Notes

Unknown

Details

Markings

RCA INFORMATION PLATE MOUNTED ON BASE

Missing

NONE

Finish

LIGHT BROWN PAINT

Decoration

N/A