Microphone
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1985.0509.001
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- OBJECT TYPE
- DYNAMIC & RIBBON VELOCITY/UNIDIRECTIONAL
- DATE
- 1939
- ARTIFACT NUMBER
- 1985.0509.001
- MANUFACTURER
- Western Electric
- MODEL
- 639A
- LOCATION
- United States of America
More Information
General Information
- Serial #
- 743
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- CASE, CAST ALUMINUM OR WHITE METAL/ INTERNAL CONSTRUCTION, MAGNETS, CORRUGATED RIBBON ELEMENT, DIAPHRAGM AND VOICE COIL, EQUALIZERS, TRANSFORMERS, ETC./ CASE: SYNTHETIC WITH METAL ZIPPER
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 21.9 cm
- Width
- 11.2 cm
- Height
- 9.1 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Sound
- Sub-Category
- N/A
Manufacturer
- AKA
- Western Electric
- Country
- United States of America
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- 1940-1965 (APPROX)
- Canada
-
PLEASE SEE HISTORY OF CRAWLEY FILMS LTD. IN SUPP. INFO. - Function
-
USED TO PICK UP SOUND SUCH AS VOICE AND MUSIC AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE CURRENT TO BE AMPLIFIED AND TRANSMITTED WITH THE TELEVISION VIDEO. - Technical
-
A UNIQUE STEP IN THE DEVELOPMENT OF DIRECTIONAL MICROPHONES. OTHER MANUFACTURERS QUICKLY DEVELOPED SIMILAR MICROPHONES. - Area Notes
-
Unknown
Details
- Markings
- 'Western Electric' IN RED ON PLATE ATTACHED TO BODY/ 'WESTERN ELECTRIC MADE IN U.S.A. 639A 743' IN CIRCLE AROUND ATTACHMENT/ 'CDA' IN RED ABOVE SCREW ON BODY/ 'USE 'C' OR 'D' POSITIONS ONLY' HANDWRITTEN IN BLUE INK ON ADHESIVE TAPE ATTACHED TO BODY/ 'WESTERN ELECTRIC/ MADE IN U.S.A.' ON CASE
- Missing
- PART OF VERTICAL GRILL ON FRONT OFCASE BROKEN OFF/ NICKLE PLATED TRIM STRIP CRACKED AT TOP RIGHT REAR
- Finish
- BLACK METAL BODY/ SILVER-COLOURED TRIM/ DEEP PURPLE COLOURED FABRIC/ TEXTURED BAND ON ATTACHMENT IS PAINTED YELLOW.
- Decoration
- TWO CHROME STRIPS WITH RED DETAIL CIRCLES THE TOP AND BOTTOM OF THE CASE/ A SMALLER STRIP CIRCLES THE MOUNTING TUBE
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Western Electric, Microphone, circa 1939, Artifact no. 1985.0509, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1985.0509.001/
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