Consrad Radio Design Guides -1925A.jpg ThumbnailsEveryday Engineering 1918-12ThumbnailsEveryday Engineering 1918-12ThumbnailsEveryday Engineering 1918-12ThumbnailsEveryday Engineering 1918-12ThumbnailsEveryday Engineering 1918-12
The Tropadyne is the Superadio, the only radio with tunable intermediate transformers. Pictorial design guide show show to build. Published in the March, 1925 issue of RADIO NEWS.



Source: Magazine collector Steve Davis

Restoration by: magscanner