Device Size Type Origin
- Contact Length 2 Millimeter (73)
- Spacing 5 Millimeter (51)
- Main Tube Length 36 Centimeter (30)
- Recording Depth 37 Millimeter (28)
- Main Tube Length 32 Centimeter (23)
- Recording Depth 47 Millimeter (18)
- Spacing 3 Millimeter (12)
- Main Tube Length 27 Centimeter (11)
- Recording Depth 17 Millimeter (9)
- Recording Depth 27 Millimeter (9)
- Recording Depth 47.5 Millimeter (5)
- Spacing 3.5 Millimeter (4)
- Main Tube Length 35 Centimeter (3)
- Main Tube Length 67 Centimeter (3)
- Contact Length 5 Millimeter (2)
- Main Tube Length 213 Centimeter (2)
- Main Tube Length 30.5 Centimeter (2)
- Recording Depth 32 Millimeter (2)
- Spacing 7 Millimeter (2)
- Spacing 9 Millimeter (2)
- Main Tube Length 60 Centimeter (1)
- Recording Depth 12.5 Millimeter (1)
- Recording Depth 77 Millimeter (1)
- Spacing 1 Millimeter (1)
- Spacing 8 Millimeter (1)