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Phenix Radio Ultradyne Kit -1924A

Phenix Radio Ultradyne Kit -1924A.jpg Perfecto-Vox Receivers -1922AThumbnailsRadio 1925-02Perfecto-Vox Receivers -1922AThumbnailsRadio 1925-02Perfecto-Vox Receivers -1922AThumbnailsRadio 1925-02Perfecto-Vox Receivers -1922AThumbnailsRadio 1925-02Perfecto-Vox Receivers -1922AThumbnailsRadio 1925-02

Another step ahead, with modulation added to superheterodyne radio design. The "Modulation System" seems to be in addition to regeneration added into the RF or IF stages, for increased sensitivity and selectivity. Photo of the radio set sits on a line drawing of somebody's dining room table, where it is unlikely to stay for long. Published in the October, 1924 issue of RADIO ENGINEERING.



Source: Magazine collector Steve Davis

Restoration by: magscanner