Microphone
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Ingenium,
1984.0133.001
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- OBJECT TYPE
- RIBBON/POLYDIRECTIONAL
- DATE
- 1950
- ARTIFACT NUMBER
- 1984.0133.001
- MANUFACTURER
- Radio Corp. of America
- MODEL
- 77D
- LOCATION
- Unknown
More Information
General Information
- Serial #
- 1589
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- STEEL & ALUMINUM CASE & MOUNTING ASSEMBLY. PERMANENT MAGNET AND CORRUGATED RIBBON ASSEMBLY, RESONATING CHAMBERS AND PICK UPADJUSTING SHUTTERS PLUS MATCHING TRANSFORMER. MICROPHONE CORD CONNECTOR IS MOUNTED ON CASE WITH CORD ATTACHED.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 29.8 cm
- Width
- 10.0 cm
- Height
- 9.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Sound
- Sub-Category
- N/A
Manufacturer
- AKA
- RCA
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- North America
- State/Province
- Unknown
- Period
- 1950-1980
- Canada
-
USED IN CANADA - Function
-
TO PICK UP SOUND AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT WOULD BE AMPLIFIED TO MODULATE A TRANSMITTER OR TO DRIVE SOUND RECORDING EQUIPMENT. - Technical
-
AN EXAMPLE OF AN ADJUSTABLE PICK UP DESIGN FIRST DEVELOPED BY RCA IN 1931. - Area Notes
-
Unknown
Details
- Markings
- PLATE ON BACK: 'S 04425'/ 'RCA' INSIGNIA ON FRONT & BACK/ STAMPED ON FRONT: '1589'/ ADJUSTMENT ON BOTTOM READS: 'M' 'V1' 'V2'
- Missing
- NIL/ SOME DAMAGE TO THE BROWN PLASTIC TRIM JUST BELOW THE GRILL.
- Finish
- BOTTOM PORTION OF CASE IS POLISHED CHROME OR NICKLE. CENTRE SECTION IS BROWN PLASTIC WITH POLISHED AND DECORATED ALUMINUM INSERT, TOP SECTION IS PERFORATED POLISHED ALUMINUM. A FABRIC WIND SCREEN IS BEHIND THE PERFORATED TOP SECTION.
- Decoration
- POLISHED ALUMINUM BELT IN CENTRE OF THE MICROPHONE HAS BROWN STRIPES AND RED, ALUMINUM AND BROWN RCA INSIGNIAS.
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Radio Corp. of America, Microphone, circa 1950, Artifact no. 1984.0133, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1984.0133.001/
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