Large free online resource for antique and vintage radios, with over fifty thousand pages of scanned Riders schematics, service manuals, tube cross reference, articles, and forums.

Chuck Schwark provides many resources for the Philco radio collector and restorer, ranging from parts cross-references, to service information on some of the more obscure features such as the "Beam-Of-Light" tonearm pickup, and an identification guide for early cathedral models.

Austrian radio history, with a profile of Eng. Franz Zehetner (1907-1986) and his radio and television products, with photographs and advertising copy. [Mostly German, but with some English text]

An archive of over 1000 photos of antique radios, information on future and past club meetings and auctions, and reference material for repairing old sets.

Photos, schematics, alignment data, model specs, and a directory of links for Zenith TransOceanic Long Distance radios.