From Infogalactic: the planetary knowledge core
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Linear |
Wide (19 - 25.4 mm) |
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Half inch (12.7 mm) |
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Eight millimeter (8 mm) |
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Quarter inch (6.35 mm) |
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"Eighth" (0.15) inch (3.81 mm) |
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Stringy (1.58–1.9 mm) |
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Helical |
Three quarter inch (19 mm) |
- Sony DIR (19xx)
- Ampex DST (1992)
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Half inch (12.7 mm) |
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Eight millimeter (8 mm) |
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Four millimeter (3.81 mm) |
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