Microphone

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Ingenium, 1970.0025.001
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OBJECT TYPE
RIBBON VELOCITY
DATE
Unknown
ARTIFACT NUMBER
1970.0025.001
MANUFACTURER
RCA
MODEL
44BX
LOCATION
Unknown

More Information


General Information

Serial #
1605
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
CASE,STEEL BOTTOM ASSEMBLY PLATE, NON-FERROUS CAST BOTTOM SECTION, TOP, PERFORATED NON FERROUS METAL, FABRIC WIND SCREEN BEHIND PERFORATED TOP SECTION. MICROPHONE ASSEMBLY HAS A MAGNET ASSEMBLY WITH CORROGATED RIBBON MOUNTED IN THE MAGNETIC FIELD. MATCHING TRANSFORMER IS MOUNTED IN THE BOTTOM SECTION.

Dimensions

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

Length
30.5 cm
Width
12.7 cm
Height
12.7 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
Unknown
State/Province
Unknown
City
Unknown

Context

Country
North America
State/Province
Unknown
Period
1940-1960
Canada
USED IN CANADA FOR A ROYAL TOUR.
Function
TO PICK UP SOUND, VOICE AND MUSIC AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT WOULD BE AMPLIFIED TO MODULATE A TRANSMITTER OR TO DRIVE A RECORDING DEVICE. RANGE 30 TO 15000HZ.
Technical
THE RIBBON MICROPHONE WAS A DEPARTURE FROM THE USUAL DIAPHRAGM DEVICE THAT MODIFIED THE VOICE RESPONSE BY THE FREQUENCY RESPONSE OF THE STRUCTURE, AS IT CONTRIBUTED VERY LITTLE MODIFICATION TO SOUND. WAS USED IN FILM AND BROADCASTING FOR MANY YEARS. PROVIDED A VERY TIGHT BI-DIRECTIONAL PICKUP PATTERN.
Area Notes
Unknown

Details

Markings
BOTTOM EDGE & UNDERNEATH MIKE: 'M V'/ STAMPED UNDER MIKE: '1605'/ ON FRONT: 'RCA [LOGO]'/ PLATE ON CASE: 'CBC/ Radio-Canada/ 106573'/ HANDWRITTEN ON CASE: 'OP-117/ GOLD PLATED/ 44BX/ E.H.Q. OPERATION POOL/ 1-MICROPHONE - 44-BX/ SER. 1605 GOLD PLATED/ CASE ASSET # 106573'
Missing
none apparent
Finish
BOTTOM SECTION, ANTIQUE BRONZE/ CONNECTOR, BLACK WRINKLE ENAMEL/ REMAINDER OF MIKE & MOUNTING ASSEMBLY, GOLD-PLATED
Decoration
N/A

CITE THIS OBJECT

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

RCA, Microphone, Unknown Date, Artifact no. 1970.0025, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1970.0025.001/

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