photophone transmitter

photophone transmitter

Usage conditions apply
Currently not on view
Object Name
Photophone Transmitter
Physical Description
metal, tin (box, parts of (2) material)
from cat. cards: base: 8 in x 10 in; 20.32 cm x 25.4 cm
from cat. cards: vertical block: 5 1/4 in x 5 1/4 in; 13.335 cm x 13.335 cm
from cat. cards: glass gratings: 1 1/4 in x 3 1/4 in; 3.175 cm x 8.255 cm
overall, speaking tube: 2 1/4 in x 14 3/4 in; 5.715 cm x 37.465 cm
overall, transmitter: 6 1/4 in x 8 in x 11 in; 15.875 cm x 20.32 cm x 27.94 cm
ID Number
catalog number
See more items in
Work and Industry: Mechanisms
Data Source
National Museum of American History
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