Device Size Type Origin
- Spacing 5 Millimeter (79)
- Contact Length 2 Millimeter (77)
- Recording Depth 17 Millimeter (28)
- Main Tube Length 36 Centimeter (25)
- Recording Depth 37 Millimeter (24)
- Main Tube Length 32 Centimeter (21)
- Main Tube Length 35 Centimeter (16)
- Recording Depth 47 Millimeter (13)
- Recording Depth 27 Millimeter (11)
- Spacing 10 Millimeter (6)
- Main Tube Length 27 Centimeter (3)
- Main Tube Length 67 Centimeter (3)
- Contact Length 5 Millimeter (2)
- Main Tube Length 20 Centimeter (2)
- Main Tube Length 30.5 Centimeter (2)
- Main Tube Length 35.5 Centimeter (2)
- Recording Depth 32 Millimeter (2)
- Recording Depth 35 Millimeter (2)
- Recording Depth 7 Millimeter (2)
- Recording Depth 72 Millimeter (2)
- Spacing 15 Millimeter (2)
- Main Tube Length 22 Centimeter (1)
- Recording Depth 57 Millimeter (1)
- Recording Depth 65 Millimeter (1)
- Recording Depth 67 Millimeter (1)