Device Size Type Origin
- Contact Length 2 Millimeter (81)
- Main Tube Length 36 Centimeter (59)
- Spacing 5 Millimeter (50)
- Recording Depth 37 Millimeter (20)
- Spacing 3 Millimeter (18)
- Recording Depth 17 Millimeter (16)
- Recording Depth 27 Millimeter (15)
- Main Tube Length 27 Centimeter (12)
- Recording Depth 47 Millimeter (11)
- Main Tube Length 60 Centimeter (10)
- Spacing 1.5 Millimeter (9)
- Contact Length 5 Millimeter (4)
- Recording Depth 32 Millimeter (4)
- Spacing 9 Millimeter (4)
- Main Tube Length 213 Centimeter (2)
- Recording Depth 12.5 Millimeter (2)
- Recording Depth 26.5 Millimeter (2)
- Recording Depth 40.5 Millimeter (2)
- Recording Depth 47.5 Millimeter (2)
- Recording Depth 54.5 Millimeter (2)
- Main Tube Length 32 Centimeter (1)
- Main Tube Length 35 Centimeter (1)
- Recording Depth 110 Millimeter (1)
- Recording Depth 33.5 Millimeter (1)
- Recording Depth 35 Millimeter (1)
- Recording Depth 77 Millimeter (1)
- Recording Depth 95 Millimeter (1)