Device Size Type Origin
- Spacing 10 Millimeter (48)
- Main Tube Length 32 Centimeter (34)
- Contact Length 5 Millimeter (28)
- Contact Length 2 Millimeter (20)
- Recording Depth 55 Millimeter (11)
- Main Tube Length 35 Centimeter (6)
- Recording Depth 72 Millimeter (6)
- Spacing 1.5 Millimeter (6)
- Main Tube Length 60 Centimeter (5)
- Recording Depth 44 Millimeter (5)
- Recording Depth 32 Millimeter (4)
- Recording Depth 35 Millimeter (4)
- Recording Depth 52 Millimeter (4)
- Recording Depth 92 Millimeter (4)
- Main Tube Length 27 Centimeter (3)
- Recording Depth 75 Millimeter (3)
- Recording Depth 95 Millimeter (3)
- Recording Depth 12 Millimeter (2)
- Recording Depth 15 Millimeter (2)
- Recording Depth 25 Millimeter (2)
- Recording Depth 26.5 Millimeter (1)
- Recording Depth 33.5 Millimeter (1)
- Recording Depth 40.5 Millimeter (1)
- Recording Depth 47.5 Millimeter (1)
- Recording Depth 54.5 Millimeter (1)
- Recording Depth 65 Millimeter (1)
- Spacing 2.8 Millimeter (1)
- Spacing 3 Millimeter (1)