Demonstration models for sapphire stylus preparation

Made:
1948 in United Kingdom
maker:
British Broadcasting Corporation
Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Buy this image as a print 

Buy

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

License

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Box of large-scale demonstration models for sapphire stylus preparation. See Also paperwork with inv. No:102. To aid in
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Large-scale demonstration models for sapphire stylus preparation.

The BBC used a sapphire needle or stylus to both replay records and record sound by cutting onto a disc. Styli would wear and could be strengthened and repaired by attaching sapphire blanks to steel or duralumin shanks. Synthetic sapphire blanks were supplied as cylinders and cut to shape. Using sapphire styli improved the longevity of each stylus needed for the large amount of music and sound output of BBC.

Specific shapes were required to cut an accurate groove for recording sound. These large scale models were produced as demonstration guides for staff training. The models show the three stages of preparation for reproducing the sapphire stylus type RS/8: a sapphire blank (an acrylic cylinder), the sapphire mounted on the steel shank, and the final stylus after the sapphire is ground to shape using a bevelling tool.

Details

Category:
Television
Collection:
BBC Heritage Collection
Object Number:
2012-5118/59
Materials:
acrylic and steel (metal)
Measurements:
Stylus: 240 mm 23 mm,
type:
representational model
taxonomy:
  • visual and verbal communication