Device Size Type Origin
- Contact Length 2 Millimeter (92)
- Spacing 5 Millimeter (62)
- Recording Depth 37 Millimeter (55)
- Main Tube Length 35 Centimeter (33)
- Main Tube Length 32 Centimeter (25)
- Spacing 3 Millimeter (18)
- Main Tube Length 36 Centimeter (17)
- Recording Depth 17 Millimeter (16)
- Main Tube Length 27 Centimeter (12)
- Spacing 10 Millimeter (12)
- Recording Depth 47 Millimeter (5)
- Contact Length 5 Millimeter (4)
- Main Tube Length 30.5 Centimeter (4)
- Recording Depth 32 Millimeter (4)
- Recording Depth 35 Millimeter (4)
- Recording Depth 72 Millimeter (4)
- Spacing 7 Millimeter (4)
- Recording Depth 27 Millimeter (3)
- Main Tube Length 213 Centimeter (2)
- Main Tube Length 67 Centimeter (2)
- Recording Depth 110 Millimeter (2)
- Recording Depth 12.5 Millimeter (2)
- Main Tube Length 60 Centimeter (1)
- Recording Depth 47.5 Millimeter (1)
- Recording Depth 77 Millimeter (1)
- Recording Depth 95 Millimeter (1)
- Spacing 2.4 Millimeter (1)
- Spacing 8 Millimeter (1)