Datei%3ADeForest_RJ6_Receiving_Set_from_the_March_1916_QST.png

Datei:DeForest RJ6 Receiving Set from the March 1916 QST.png

DescriptionDeForest RJ6 Receiving Set from the March 1916 QST.png English: Caption: "The RJ6 Receiving Set Mfd. by The De Forest Radio Tel. & Tel. Co...

Datei:De Forest RJ6 Audion radio receiver.jpg

December 1915, page v on Google Books Author Lee De Forest Other versions DeForest RJ6 Receiving Set from the March 1916 QST.png has much lower resolution....

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Datei:De Forest RJ6 Audion radio receiver.jpg

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