4734 records — Page 169 of 470
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Creators:
Clark, George H.
Dates:
undated
Level:
item
Size:
1 Item (Silver gelatin on cellulose acetate film sheet., 7.2" x 9.0".)
Collection ID:
NMAH.AC.0055
Repository:
Archives Center, National Museum of American History
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Creators:
Knight, Thomas Coke
Radio Corporation of America.
Dates:
1920-1930
Level:
item
Size:
1 Item (8" x 10".)
Collection ID:
NMAH.AC.0055
Repository:
Archives Center, National Museum of American History

Photograph of 3 framed RCA advertisements: RCA Radiola 28, "Theatre of the Air, and RCA Loud Speaker Model 100 ("A Triumph!"). No. 2113 in file.

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Creators:
Clark, George H.
General Electric Company
Dates:
undated
Level:
item
Size:
2 Items (Silver gelatin on paper., 8.1" x 10.5".)
Collection ID:
NMAH.AC.0055
Repository:
Archives Center, National Museum of American History
[ ]
Collapse
[ ]
Expand
Creators:
Clark, George H.
Dates:
undated
Level:
item
Size:
2 Items (Silver gelatin on paper., 10.0" x 8.0".)
Collection ID:
NMAH.AC.0055
Repository:
Archives Center, National Museum of American History

Twelve 400 feet (122 meters) towers support two independent antenna. The towers are spaced 1250 feet (380 meters) apart. Each tower has a cross-arm 150 feet (46 meters) in length.

4734 records — Page 169 of 470