Device Size Type Origin
- Contact Length 2 Millimeter (39)
- Spacing 5 Millimeter (19)
- Main Tube Length 35 Centimeter (17)
- Spacing 3 Millimeter (12)
- Recording Depth 27 Millimeter (11)
- Recording Depth 17 Millimeter (8)
- Main Tube Length 36 Centimeter (7)
- Main Tube Length 27 Centimeter (6)
- Spacing 10 Millimeter (6)
- Main Tube Length 60 Centimeter (5)
- Recording Depth 37 Millimeter (5)
- Recording Depth 47 Millimeter (4)
- Spacing 1.5 Millimeter (4)
- Main Tube Length 32 Centimeter (3)
- Recording Depth 35 Millimeter (3)
- Contact Length 5 Millimeter (2)
- Main Tube Length 213 Centimeter (2)
- Recording Depth 32 Millimeter (2)
- Recording Depth 72 Millimeter (2)
- Main Tube Length 67 Centimeter (1)
- Recording Depth 12.5 Millimeter (1)
- Recording Depth 26.5 Millimeter (1)
- Recording Depth 40.5 Millimeter (1)
- Recording Depth 47.5 Millimeter (1)
- Recording Depth 54.5 Millimeter (1)
- Recording Depth 77 Millimeter (1)