Device Size Type Origin
- Contact Length 2 Millimeter (28)
- Spacing 1.5 Millimeter (17)
- Main Tube Length 27 Centimeter (13)
- Recording Depth 80 Millimeter (12)
- Recording Depth 35 Millimeter (10)
- Spacing 3.5 Millimeter (10)
- Contact Length 5 Millimeter (9)
- Main Tube Length 32 Centimeter (9)
- Main Tube Length 60 Centimeter (9)
- Spacing 10 Millimeter (8)
- Main Tube Length 35 Centimeter (4)
- Recording Depth 19.5 Millimeter (2)
- Recording Depth 26.5 Millimeter (2)
- Recording Depth 40.5 Millimeter (2)
- Recording Depth 54.5 Millimeter (2)
- Recording Depth 65 Millimeter (2)
- Main Tube Length 55 Centimeter (1)
- Main Tube Length 85.4 Centimeter (1)
- Recording Depth 100 Millimeter (1)
- Recording Depth 12.5 Millimeter (1)
- Recording Depth 33.5 Millimeter (1)
- Recording Depth 47.5 Millimeter (1)
- Recording Depth 95 Millimeter (1)
- Spacing 2.43 Millimeter (1)
- Spacing 5 Millimeter (1)