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frequency measuring instruments | PPT
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Vibrating Reed Tachometer—Type D-1 Dwarf — STICHT CO
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Frahm Resonant Reed Tachometer by Biddle w/ case | #128072566
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Vibrating Reed Tachometer—Type D-2 Dwarf — STICHT CO
![The vibrating reed frequency meter: digital investigation of an early cochlear model [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2015/1333/1/fig-1-2x.jpg "The vibrating reed frequency meter: digital investigation of an early cochlear model [PeerJ]")
The vibrating reed frequency meter: digital investigation of an early cochlear model [PeerJ]
FRAHM Resonant Reed Tachometer 8-20x1000 RPM James Biddle Company #345389 | eBay
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GR Strobotac
FRAHM Resonant Reed Tachometer 8-20x1000 RPM James Biddle Company #345389 | eBay
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