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Multifrequency Calibration Tape, ¼″, 3.75 ips (9.52 cm/s), 320 nWb/m, IEC 1 (CCIR) & IEC 2 (NAB), 9:30 min., Item no. 76480
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How Reel-to-Reel Tape Decks Work and My Experiences with Purchasing and Repairs… - HomeTheaterHifi.com
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BASF reference tape calibration tape 38 cm/s 1/4 inch | Open Reels | Tape Material | Recording Separates | Audio Devices | Spring Air
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