The photograph depicts a Radio Signal Corps apparatus used during World War One. The apparatus includes various components such as a tube, resistor, condenser, modulator, oscillator, ballast lamp, ventilating hole, antenna coil, reaction coil, and mounting lugs. The apparatus also features a rubber cushion, screws, box clasp catch, base, and shock absorber.

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Size: 8445px × 5673px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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