Device Size Type Origin
- Contact Length 2 Millimeter (79)
- Main Tube Length 27 Centimeter (58)
- Spacing 3.5 Millimeter (29)
- Recording Depth 37 Millimeter (27)
- Spacing 5 Millimeter (27)
- Main Tube Length 32 Centimeter (11)
- Main Tube Length 36 Centimeter (8)
- Spacing 3 Millimeter (6)
- Recording Depth 33.5 Millimeter (5)
- Recording Depth 26.5 Millimeter (4)
- Recording Depth 40.5 Millimeter (4)
- Recording Depth 47.5 Millimeter (4)
- Recording Depth 54.5 Millimeter (4)
- Recording Depth 61.5 Millimeter (4)
- Recording Depth 68.5 Millimeter (4)
- Recording Depth 80 Millimeter (4)
- Spacing 3.97 Millimeter (4)
- Spacing 4.43 Millimeter (4)
- Contact Length 1.3 Millimeter (3)
- Recording Depth 90 Millimeter (3)
- Main Tube Length 30.5 Centimeter (2)
- Main Tube Length 35 Centimeter (2)
- Recording Depth 65 Millimeter (2)
- Recording Depth 85 Millimeter (2)
- Spacing 2 Millimeter (2)
- Spacing 7 Millimeter (2)
- Main Tube Length 67 Centimeter (1)
- Recording Depth 100 Millimeter (1)
- Recording Depth 110 Millimeter (1)
- Recording Depth 12.5 Millimeter (1)
- Recording Depth 16.7 Millimeter (1)
- Recording Depth 27 Millimeter (1)
- Recording Depth 29 Millimeter (1)
- Recording Depth 30 Millimeter (1)
- Recording Depth 34.3 Millimeter (1)