Microphone
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1978.0520.001
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- OBJECT TYPE
- CRYSTAL/UNIDIRECTIONAL
- DATE
- 1938
- ARTIFACT NUMBER
- 1978.0520.001
- MANUFACTURER
- Shure Bros.
- MODEL
- 730A
- LOCATION
- Chicago, Illinois, United States of America
More Information
General Information
- Serial #
- S5432
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- CAST METAL CASE & MOUNTING/ CONNECTOR ASSEMBLY. PROTECTIVE GRILL CLOTH. CRYSTAL MICROPHONE CAPSULE & FOAM RUBBER MOUNTING MATERIAL
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- N/A
- Width
- 11.5 cm
- Height
- 8.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Sound
- Sub-Category
- N/A
Manufacturer
- AKA
- Shure
- Country
- United States of America
- State/Province
- Illinois
- City
- Chicago
Context
- Country
- North America
- State/Province
- Unknown
- Period
- 1938-1950
- Canada
-
Unknown - Function
-
USED TO PICK UP SOUND, VOICE OR MUSIC, & CONVERT TO COMPLEX ALTERNATIGN CURRENT. THE ALTERNATING CURRENT WOULD BE APLIFIED & USED TO DRIVE SPEAKERS ETC. - Technical
-
AN EXAMPLE OF THE `CARDIOID' DESIGN IN A CRYSTAL MICROPHONE - Area Notes
-
Unknown
Details
- Markings
- MFG'S PLATE: `MODEL/ 730A/ CARDIOID/ Uniplex/ UNI-/ DIRECTIONAL/ CRYSTAL MICROPHONE/ SERIAL/ S5432/ SEE PATENT NOTICE/ INSIDE AND ON CARTON/ MADE IN/ UNITED STATES OF AMERICA/ SHURE BROTHERS CHICAGO USA'
- Missing
- N/A
- Finish
- CHROME PLATED
- Decoration
- RAISED PROTECTIVE GRILL OVER DIAPHRAM OPENING
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Shure Bros., Microphone, circa 1938, Artifact no. 1978.0520, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1978.0520.001/
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