Konyvtarfelszamolasbol kukaztam az RCA REVIEW nehany kotetet: Nehany cim 1936-37 -bol: RCA television field test Micro-waves in NBC remote pick-ups Automobile receiver design An elektromagnetic metal detector Television radio relay The New York - Philadelphia ultra high frequency facsimile relay system Szoval a spanyolvisz nagy reszet mar regen feltalaltak.