Magnetic Particle: Linear Ferric
Coercivity: 380 Oe
Remanence: 1650 Gauss
Squareness Ratio: 0.84
Operating Bias: 0.0dB
MOL 315Hz: +5.0dB
MOL 10kHz: -5.0dB
Sensitivity at 315Hz: +0.5dB
Sensitivity at 3.15kHz: +1.3dB
Sensitivity at 10kHz: +2.0dB
Sensitivity at 16kHz: +2.0dB
Bias Noise: -56.5dB
TDK AD was a reasonably good type I cassette. It evolved from TDK SD and appreared first around 1977.
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Japan |
US |
Europe |
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77-78 |
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79-81 |
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82-84 |
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84-85 |
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84-87 |
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87-88 |
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88-89 |
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90-91 |
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91-92 |
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92-95 |
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94-97 |
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97-01 |
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to contact us: tdk(AT)vintagecassettes.com