Pressure Gradient Double (PGD) ribbon microphone No. 5 (also possibly J2008)

Made:
1950-60
maker:
British Broadcasting Corporation
The PGD microphones were BBC Research Dept. prototypes Pressure Gradient Double (PGD) ribbon microphone No. 5

Creative Commons LicenseThis image is released under a CC BY-NC-SA 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 CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

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

License

The PGD microphones were BBC Research Dept. prototypes
Science Museum Group
© The Board of Trustees of the Science Museum

Pressure Gradient Double (PGD) ribbon microphone No. 5
Science Museum Group
© The Board of Trustees of the Science Museum

Pressure Gradient Double (PGD) ribbon microphone No. 5 (also possibly J2008), 1950-60.

The PGD microphones were BBC Research Dept. prototypes. Never put into commercial production, the PGD had a double magnet, making it more sensitive than the PGS microphone (which had a single magnet). The BBC used at least one in Broadcasting House in the 1950s and 1960s. The PGS was later sold under licence by STC as the STC 4038.

Details

Category:
Television
Collection:
BBC Heritage Collection
Object Number:
2012-5118/403
Materials:
metal (unknown) and electronic components
Measurements:
overall: 310 mm x 210 mm x 40 mm, 2.5 kg
type:
microphone