Device Size Type Origin
- Contact Length 2 Millimeter (33)
- Main Tube Length 27 Centimeter (20)
- Spacing 1.5 Millimeter (17)
- Spacing 3 Millimeter (11)
- Main Tube Length 60 Centimeter (10)
- Recording Depth 47.5 Millimeter (6)
- Recording Depth 47 Millimeter (4)
- Spacing 3.5 Millimeter (4)
- Main Tube Length 32 Centimeter (3)
- Recording Depth 19.5 Millimeter (2)
- Recording Depth 26.5 Millimeter (2)
- Recording Depth 27 Millimeter (2)
- Recording Depth 37 Millimeter (2)
- Recording Depth 40.5 Millimeter (2)
- Recording Depth 54.5 Millimeter (2)
- Recording Depth 65 Millimeter (2)
- Recording Depth 95 Millimeter (2)
- Recording Depth 100 Millimeter (1)
- Recording Depth 110 Millimeter (1)
- Recording Depth 12.5 Millimeter (1)
- Recording Depth 33.5 Millimeter (1)
- Recording Depth 35 Millimeter (1)
- Recording Depth 77 Millimeter (1)
- Recording Depth 80 Millimeter (1)
- Spacing 1 Millimeter (1)