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Speed Calibration Test Tape Speed calibration test tape for cassette deck or walkman or boombox - 3000 Hz - FixYourAudio
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Multifrequency Calibration Tape, ¼″, 3.75 ips (9.52 cm/s), 250 nWb/m, IEC 1 (CCIR) & IEC 2 (NAB), 8:00 min, Item no. 76481
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ANALOG TAPES — 1" 15 IPS MRL Four Frequency IEC Custom Calibration Tape: 1 kHz, 10 kHz, 16 kHz, and 100 Hz
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