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 SHURE 1933-1998 time line

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MensagemAssunto: SHURE 1933-1998 time line   Dom Jan 25 2015, 20:45

A Brief History of Shure Phonograph Products: 1933 - 1998

1933: Shure begins to supply OEM crystal pickups to various manufacturers of record players

1937: Shure introduces the model 99A Zephyr - a balanced tracking crystal record reproducer. This product featured a full-floating, non-resonant tone arm; low "needle-point" impedance; and "needle tilt" that kept the stylus in true alignment with the record groove.

1951: Shure offers a complete line of crystal and ceramic pickups, including direct-drive single sided; vertical drive turnover; vertical drive single sided; muted stylus; and lever type. The exact meaning of each term is sadly no longer known.

1955: Shure introduces the ML44 Series known as the Music Lover's Cartridge. It is a ceramic pickup with a twin-lever coupling and the ability to play three speeds of records. Two styli (1 mil and 3 mil) were interchangeable by the user.

1957: The M1 Studio Dynetic Cartridge is debuted and it is integrated into the M16 studio dynetic phono reproducer (tone arm). The Dynetic principle is a moving magnet with a stationary coil. Tracking force is one gram and the diamond stylus tip has a radius of 0.0007 inch. Each unit is custom produced and individually tested.

1958: Shure introduces the M3D stereo Dynetic Cartridge. It is the world's first moving magnet stereo cartridge and features stereo channel separation at 1,000 Hz of 20 dB or better.

1964: The V15 Stereo Dynetic High Fidelity Cartridge is first sold. It features a 15 degree vertical tracking angle, a bi-radial elliptical stylus (0.0002 x 0.0009 inch), and is subjected to exacting quality control and inspections that are unique in the industry.

1966: The V15 Type II superceded the V15. This new V15 was designed using an analog computer and introduced the concept of Trackability - the ability to maintain contact between the stylus tip and the record groove at all frequencies using a minimum tracking force. A flip-action stylus guard was another new feature.

1970: The V15 Type II Improved features a flatter frequency response and an upgrade diamond stylus.

1973: The V15 Type III debuts with a uniformly flat, unaccented, uncolored frequency response. This was accomplished by reducing the stylus mass by 25% and by employing a new laminated pole piece design.

1978: Shure introduces the V15 Type IV. It features a viscous-damped Dynamic Stabilizer that overcomes most record warps. The Stabilizer brush also cleans the record and reduces any static charge. A hyper-ellipitical, nude mounted stylus tip improved the tip-to-groove contact area.

1982: The V15 Type V features a MASAR polished stylus tip to reduce friction. The ultra-thin beryllium stylus shank dramatically improves trackability. A Duo-Point alignment gauge is used during installation to minimize lateral tracking angle error.

1983: The V15 Type V-MR features a Micro-Ridge stylus shaped that emulates the shape of a cutting stylus. This greatly improves trackability in the high frequency range.

1997: The V15VxMR is introduced with improvements in the stylus design and pole piece design to provide a warmer and more musical sound quality.

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MensagemAssunto: Re: SHURE 1933-1998 time line   Dom Jan 25 2015, 22:52

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