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H3-25: GALTON'S WHISTLE 8 years 7 months ago #830

  • zzfixk23
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ID Code: H3-25
Purpose: Produce high-frequency tones.
Description: This device consists of a very short tube which can be activated by blowing air past an edge using the bulb. The tube is calibrated, and can produce both high-frequency audible pitches and ultrasonic frequencies.
Availability: Available

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Last edit: by zzfixk21.
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