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SEM of diamond stylus in groove of LP record

SEM of diamond stylus in groove of LP record

H100/0104

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26.4 MB (26.0 MB compressed)

3543 x 2607 pixels

30.0 x 22.1 cm ⏐ 11.8 x 8.7 in (300dpi)

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Credit

DR. TONY BRAIN / SCIENCE PHOTO LIBRARY DR. TONY BRAIN / SCIENCE PHOTO LIBRARY

Caption

Scanning electron micrograph (SEM) of the surface of a long-playing record (L.P.), showing a spherical diamond stylus (suspended below its cantilever arm) sitting in a groove. The L.P. is made by pressing the recording information onto a softened (heated) PVC disc. The stylus sits nicely in the V-shaped groove, and lateral vibrations are picked up by the stylus and transduced by a moving-coil or moving-magnet cartridge into an electrical signal, which passes through an amplifier to be heard on loudspeakers. Magnification: X 13 at 35mm size, X 90 at 8x10- inch size.

Release details

Model release not required. Property release not required.

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