Device Size Type Origin
- Main Tube Length 32 Centimeter (61)
- Contact Length 2 Millimeter (46)
- Contact Length 5 Millimeter (43)
- Spacing 10 Millimeter (40)
- Recording Depth 37 Millimeter (28)
- Spacing 5 Millimeter (25)
- Recording Depth 55 Millimeter (11)
- Main Tube Length 36 Centimeter (10)
- Main Tube Length 35 Centimeter (8)
- Spacing 7 Millimeter (7)
- Recording Depth 30 Millimeter (5)
- Recording Depth 35 Millimeter (5)
- Recording Depth 44 Millimeter (5)
- Recording Depth 72 Millimeter (5)
- Recording Depth 15 Millimeter (4)
- Recording Depth 32 Millimeter (4)
- Recording Depth 92 Millimeter (4)
- Main Tube Length 27 Centimeter (3)
- Spacing 3 Millimeter (3)
- Main Tube Length 213 Centimeter (2)
- Main Tube Length 30.5 Centimeter (2)
- Recording Depth 25 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 5.6 Millimeter (2)
- Spacing 7.5 Millimeter (2)
- Spacing 9 Millimeter (2)
- Main Tube Length 52 Centimeter (1)
- Main Tube Length 67 Centimeter (1)
- Main Tube Length 85.4 Centimeter (1)
- Recording Depth 52 Millimeter (1)