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Diagram of Bell's second telephone, 1879

Diagram of Bell's second telephone, 1879
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Largest available format 7465 × 2809 px 4 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB] Online Purchase
Large 7465 × 2809 px 632 × 238 mm 3.6 MB
Medium 1024 × 386 px 87 × 33 mm 324 KB

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IMAGE number
UIG3479294
Image title
Diagram of Bell's second telephone, 1879
Auto-translated text View Original Source
Date
1879 AD (C19th AD)
Image description

Diagram of Bell's second telephone: Acoustic waves through N (diaphragm) and A (lever) make the armature of the electromagnet connected to lever vibrate. New York, dated 1879.

Photo credit
Universal History Archive/UIG / Bridgeman Images
Image keywords
19th century / communication / electricity / USA / North America / America / diagram / electrical / telephone / sound waves / electromagnet / vibration / electric / sound waves / acoustic / diagram / electrical / 19th century / electricity / alexander graham bell / telephone / 1870s / electromagnet / communication

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