Magnetic Reference Lab 21F101-A
1/4" Open Reel Calibration Tape , 3.75"/s

OUR PART #:  21F101-A

These tapes contain a series of recorded sine-wave signals for general-purpose use for standardizing azimuth, equalization...
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Magnetic Reference Lab 21F101-A  1/4" Open Reel Calibration Tape , 3.75"/s 21F101-A
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List Price: $120.00
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Magnetic Reference Lab 21F101-A
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These tapes contain a series of recorded sine-wave signals for general-purpose use for standardizing azimuth, equalization, and sensitivity (usually called "gain" or "level") of open-reel analog audio magnetic tape reproducers.  They are not intended for testing tape reproducer speed, flutter, distortion, or track placement.

The signals on these tapes can be monitored with a voltmeter—either the program level meter in the tape reproducer or an external voltmeter.  Useful auxiliary test equipment includes a loudspeaker or headphones to hear the voice announcements of frequencies and levels, an oscilloscope to observe waveforms, and a level recorder in order to provide a graph of the frequency response.

Magnetic Reference Laboratory 21F101-A Specifications:

  • Tape Width: 1/4" 6.3 mm)
  • Playing Time: 6 minutes
  • Tape Speed: 3.75" per second (95 mm/s)
  • Equalization Standard: IEC & NAB
  • Fringing Compenstaed? No
  • Level of Frequency Response Section: -10 dB
  • Reference Fluxivity: 200 - 250 nWb/m

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