This image shows the Signal Corps apparatus used during World War One. It includes a power transformer, designated as TF-1, a transmitting condenser CA-3, and a mounting plate. The photograph, numbered as 36,399, was taken and issued by the Signal Corps. It indicates the presence of the H symbol and includes the notes about the MULO power transformer.

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Size: 8586px × 5786px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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