Microphone

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Ingenium, 1985.0513.001
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OBJECT TYPE: RIBBON/UNIDIRECTIONAL AXIAL
DATE: 1952
ARTIFACT NUMBER: 1985.0513.001

MANUFACTURER: RCA
MODEL: BK-5A
LOCATION: Unknown

More Information

General Information

Serial #: 1341
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: NON FERROUS CAST METAL CASE, INTERNAL MAGNETS, CORRUGATED RIBBON, DAMPING MATERIAL, CLOTH BLAST FILTER AND MATCHING TRANSFORMER

Dimensions

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

Length: 12.9 cm
Width: 4.1 cm
Height: 4.1 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: Canada
State/Province: Unknown
Period: 1952-1970
Canada: PLEASE SEE HISTORY OF CRAWLEY FILMS LTD. IN SUPP. INFO.
Function: TO PICK UP SOUND, VOICE, AND MUSIC, AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT WOULD BE AMPLIFIED TO DRIVE A SOUND RECORDING DEVICE.
Technical: COMBINATION OF A RIBBON PICK UP ELEMENT AND AXIAL CASE DESIGN PROVIDED EXCEPTIONAL DIRECTIVITY AND SENSTIVITY FOR BOOM MOUNTED TV SOUND PICKUP.
Area Notes: Unknown

Details

Markings: 'RCA' IN CIRCULAR LOGO ON FRONT; 'TYPE BK-5A' & 'M1-11010' IN RAISED LETTERING ON FRONT; '1341' HANDWRITTEN IN BLACK ON BOTTOM, AND INCISED ON CASING BELOW MODEL DESIGNATION.
Missing: BOTTOM SECTION OF CASE AND BOOMMOUNT THUMB NUT. ALSO THE MOLDED IN MOUNTING SCREWS ARE STRIPPED.
Finish: BROWN GLOSS ENAMEL
Decoration: HORIZONTAL BARS OVER GRILLS

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

RCA, Microphone, circa 1952, Artifact no. 1985.0513, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1985.0513.001/

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