Voigt condenser microphone

Made:
1920-1940 in Sydenham
inventor:
Voigt Patents Limited
Voigt condenser microphone. Note that this image has been retouched for creative purposes and some elements might have Voigt condenser microphone. Note that this image has been retouched for creative purposes and some elements might have

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a Creative Commons Attribution-ShareAlike 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a Creative Commons Attribution-ShareAlike 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a Creative Commons Attribution-ShareAlike 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Voigt condenser microphone. Note that this image has been retouched for creative purposes and some elements might have
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Voigt condenser microphone. Note that this image has been retouched for creative purposes and some elements might have
Science Museum Group Collection
© The Board of Trustees of the Science Museum

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.

Details

Category:
Radio Communication
Object Number:
1960-132
Materials:
brass (copper, zinc alloy), foam and metal
type:
microphone
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • audio equipment
credit:
Donated by the British Broadcasting Corporation