RADIO RECEIVERS AND HOW TO BUILD THEM
Dubuque, Iowa: The Dubuque Times-Journal, 1923. First Edition. Original Wraps. Octavo. The construction and operation of all the latest and most efficient circuits fully illustrated and described in simple language, including the neutrodyne, reinartz, armstrong kopprasch, ultra-audion, wood's, cockaday reflex, runed impedence and tuned plate and grid circuits together with..... More