Magnetic Recording: The First 100 YearsEric D. Daniel, C. Denis Mee, Mark H. Clark Electrical Engineering/History of Technology Magnetic Recording The First 100 Years The first magnetic recording device was demonstrated and patented by the Danish inventor Valdemar Poulsen in 1898. Poulsen made a magnetic recording of his voice on a length of piano wire. Magnetic Recording traces the development of the watershed products and the technical breakthroughs in magnetic recording that took place during the century from Poulsen’s experiment to today’s ubiquitous audio, video, and data recording technologies, including tape recorders, video cassette recorders, and computer hard drives. An international author team brings a unique perspective, drawn from professional experience, to the history of magnetic recording applications. Their key insights shed light on how magnetic recording triumphed over all competing technologies and revolutionized the music, radio, television, and computer industries. They also show how these developments offer opportunities for future applications. Magnetic Recording features 116 illustrations, including 92 photographs of historic magnetic recording machines and their inventors. |
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Page 86
... reel motor during the record and re- produce modes , thus producing a torque in the reverse direction to the tape mo- tion . The tape was tensioned by the forward motion of the tape pulling against the reel motor torque . Most ...
... reel motor during the record and re- produce modes , thus producing a torque in the reverse direction to the tape mo- tion . The tape was tensioned by the forward motion of the tape pulling against the reel motor torque . Most ...
Page 98
... reel recorder configuration , the 8 - track cartridge contained only a single reel . The tape was an endless loop , running from the innermost layer of tape on the reel , through the transport and over the playback head , then back onto ...
... reel recorder configuration , the 8 - track cartridge contained only a single reel . The tape was an endless loop , running from the innermost layer of tape on the reel , through the transport and over the playback head , then back onto ...
Page 186
... REEL ) ? To ensure proper use of a video tape recorder , the tape should be housed in a con- tainer that protects the delicate medium from dust and fingerprints . A container is also useful in positioning ... Reels) or Cartridge (One Reel)?
... REEL ) ? To ensure proper use of a video tape recorder , the tape should be housed in a con- tainer that protects the delicate medium from dust and fingerprints . A container is also useful in positioning ... Reels) or Cartridge (One Reel)?
Contents
AUDIO RECORDING | 6 |
The Telegraphone | 15 |
Steel Tape and Wire Recorders | 30 |
Copyright | |
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Magnetic Recording: The First 100 Years Eric D. Daniel,C. Denis Mee,Mark H. Clark Limited preview - 1998 |
Common terms and phrases
ac bias Ampex analog applications areal density b/in bandwidth BASF bit density broadcast Brush capacity capstan cartridge coating color compact cassette consumer Corporation cost Courtesy data rate data recording data storage developed device diameter digital recording digital video recording disk drive diskette early electronic engineers equipment error Figure film frequency German helical-scan improved inches industry instrumentation recorder Jack Mullin Ludwigshafen machine magnetic disk magnetic drum magnetic recording magnetic tape Magnetophon manufacturers mechanism memory Model modulation operation oxide Panasonic particles patent performance personal computer phonograph playback Poulsen prerecorded production quadruplex radio recording format recording heads recording medium recording system recording technology reel rotating SMPTE Sony sound Soundmirror standard stored studio surface tape drive tape speed Telegraphone telephone television tion track United video cassette recorder video signal video tape recorder wire recorders