Device Size Type Origin
- Spacing 5 Millimeter (77)
- Contact Length 2 Millimeter (75)
- Main Tube Length 32 Centimeter (25)
- Main Tube Length 36 Centimeter (25)
- Recording Depth 17 Millimeter (24)
- Recording Depth 37 Millimeter (22)
- Recording Depth 47 Millimeter (13)
- Main Tube Length 35 Centimeter (12)
- Recording Depth 27 Millimeter (9)
- Contact Length 5 Millimeter (7)
- Main Tube Length 27 Centimeter (6)
- Recording Depth 35 Millimeter (6)
- Spacing 10 Millimeter (4)
- Main Tube Length 67 Centimeter (3)
- Main Tube Length 20 Centimeter (2)
- Main Tube Length 30.5 Centimeter (2)
- Main Tube Length 35.5 Centimeter (2)
- Recording Depth 15 Millimeter (2)
- Main Tube Length 22 Centimeter (1)
- Main Tube Length 60 Centimeter (1)
- Main Tube Length 85.4 Centimeter (1)
- Recording Depth 107 Millimeter (1)
- Recording Depth 51 Millimeter (1)
- Recording Depth 57 Millimeter (1)
- Recording Depth 65 Millimeter (1)
- Recording Depth 67 Millimeter (1)
- Recording Depth 79 Millimeter (1)
- Spacing 1.5 Millimeter (1)