The RJ6 Receiving Set Mfd
"The RJ6 Receiving Set Mfd. by The De Forest Radio Tel. & Tel. Co." A one-tube radio receiver that used the Audion (triode) vacuum tube invented by Lee De Forest in 1906. The amplifying ability of the Audion was not recognised until 1913, so this is one of the earliest amplifying radio receivers.
Size: 3148px × 1588px
Photo credit: © FLHC FBD44 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, antique, artifact, bygone, educational, fashioned, heirloom, historic, historical, historically, history, image, nostalgia, nostalgic, rarity, receiving, relic, set, vintage
