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Voigt condenser microphone, 1920-1940
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Voigt condenser microphone, 1920-1940, result 1 of 1

Item Details
Open Artstor
Available to everyone
Title
Voigt condenser microphone, 1920-1940
Voigt condenser microphone
Work Type
Radio Communication
Date
1920-1940
Location
Sydenham
Material
brass (copper, zinc alloy); foam; metal
Measurements
overall: 195 mm x 90 mm diameter, .39 kg
Description
Voigt condenser microphone, probably made by Voigt Patents Limited, Sydenham, London, England, 1920-1940.; Voigt condenser microphone, probably made by Voigt Patents Limited, Sydenham, London, 1920-1940; Voigt condenser microphone, probably made by Voigt Patents Limited, Sydenham, London, England, 1920-1940.; This type of condenser microphone was known as a 'slack diaphragm' microphone. An oval central pillar with a condensing surface was covered in a thin film of insulating material, followed by an extremely thin (only one thousandth of an inch thick) sheet of metal. It was used for a period by the BBC, but was not as sensitive as other types of microphone. There was also a need to keep this type of microphone very dry which, in combination with the poor sensitivity of the device, meant the slack diaphragm microphone was less popular than other types.
Repository
Science Museum, Information Age Gallery: Broadcast
Donated by the British Broadcasting Corporation
Subject
microphone
ID Number
co35186
Source
Image and original data from Science Museum Group - https://collection.sciencemuseum.org.uk
Rights
The source metadata displayed in the Description field is released under a Creative Commons Attribution 4.0 license - https://creativecommons.org/licenses/by/4.0/. All other source metadata is released under Creative Commons Zero - https://creativecommons.org/publicdomain/zero/1.0/. The image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License - https://creativecommons.org/licenses/by-nc-sa/4.0/.
File Properties
File Name
large_1960_0132__0002_.jpg
SSID
26291045

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