Device Size Type Origin
- Main Tube Length 27 Centimeter (58)
- Contact Length 2 Millimeter (55)
- Contact Length 5 Millimeter (40)
- Main Tube Length 32 Centimeter (36)
- Spacing 3.5 Millimeter (29)
- Spacing 10 Millimeter (28)
- Recording Depth 55 Millimeter (11)
- Spacing 3 Millimeter (6)
- Recording Depth 33.5 Millimeter (5)
- Recording Depth 44 Millimeter (5)
- Recording Depth 26.5 Millimeter (4)
- Recording Depth 35 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 75 Millimeter (3)
- Recording Depth 90 Millimeter (3)
- Recording Depth 95 Millimeter (3)
- Spacing 5 Millimeter (3)
- Main Tube Length 35 Centimeter (2)
- Main Tube Length 36 Centimeter (2)
- Recording Depth 15 Millimeter (2)
- Recording Depth 25 Millimeter (2)
- Recording Depth 32 Millimeter (2)
- Recording Depth 40 Millimeter (2)
- Recording Depth 42.5 Millimeter (2)
- Recording Depth 60 Millimeter (2)
- Recording Depth 65 Millimeter (2)
- Recording Depth 85 Millimeter (2)