Device Size Type Origin
- Spacing 10 Millimeter (48)
- Main Tube Length 32 Centimeter (44)
- Contact Length 5 Millimeter (40)
- Contact Length 2 Millimeter (22)
- Main Tube Length 35 Centimeter (16)
- Recording Depth 55 Millimeter (11)
- Spacing 5 Millimeter (10)
- Recording Depth 17 Millimeter (8)
- Recording Depth 32 Millimeter (6)
- Recording Depth 72 Millimeter (6)
- Recording Depth 44 Millimeter (5)
- Recording Depth 35 Millimeter (4)
- Recording Depth 52 Millimeter (4)
- Recording Depth 92 Millimeter (4)
- Main Tube Length 36 Centimeter (2)
- Recording Depth 12 Millimeter (2)
- Recording Depth 15 Millimeter (2)
- Recording Depth 25 Millimeter (2)
- Recording Depth 37 Millimeter (2)
- Recording Depth 40 Millimeter (2)
- Recording Depth 42.5 Millimeter (2)
- Recording Depth 60 Millimeter (2)
- Recording Depth 75 Millimeter (2)
- Recording Depth 95 Millimeter (2)
- Spacing 11 Millimeter (2)
- Spacing 7 Millimeter (2)
- Spacing 7.5 Millimeter (2)
- Spacing 9 Millimeter (2)