Zenith
The 1962 Illinois Manufacturers Directory (50th Anniversary edition) lists Zenith Radio Corporation as having a total of 11,000 employees of which at least 6,460 were employed in seven Chicago plants. The corporate office was in plant number 1 located at 6001 West Dickens Avenue (north of the Chicago, Milwaukee, St. Paul and Pacific railroad tracks) where 2,500 workers made radio and television sets and Hi-Fi stereophonic phonographs. Plant number 2 was located at 1500 North Kostner Ave. where 2,100 employees made government electronics, radio and television components, transistors and hearing aids. Plant number 3 was located at 5801 West Dickens Ave.(also north of the Milwaukee Road tracks) where 300 employees made electronics and servicing. Plant number 4 was located at 3501 West Potomac Ave. where 60 employees performed warehousing. Plant number 5 located at 6501 West Grand Ave. employed 500-600 workers who made government hi-fi equipment. A subsidiary of Zenith, the Rauland Corporation located at 4245 North Knox Ave. employed 850 workers who made television picture tubes. The other Zenith subsidiary in Chicago was Central Electronics, Incorporated located at 1247 West Belmont Ave. where 100 employees made amateur radio equipment and performed auditory training. The other Central Electronics plant was located at State Route 133 and Grandview in Paris, Illinois where 500 employees made radio receivers, with the total Zenith work force in Illinois being thus at least 6,960.[5]
Motorola
In 1960, it introduced the world's first large-screen portable (19-inch), transistorized, cordless television. According to the 1962 Illinois Manufacturers Directory (50th anniversary edition), Motorola had 14,000 employees worldwide of which at least 5,823 employees in 6 plants were located in Illinois. The company headquarters were at 9401 West Grand Avenue in Franklin Park and it listed TV receivers, Stereo-Hi Fi equipment as the products at this plant made by 1,700 employees. The Communications Division was in Chicago at 4545 West Augusta Blvd. where 2,000 employees made electronic communications equipment. The Military Electronics Division was at 1450 North Cicero Avenue, Chicago where 923 employees made microwave and industrial equipment. Two more Chicago locations were listed at 4900 West Flourney Street and at 650 North Pulaski but no employee count was listed for these. The last plant was listed in Quincy, Illinois at 1400 North 30th Street where 1,200 employees made radio assemblies for both home and automobile.[21]
RCA
RCA televisions were made by 10s of thousands of employees in Indianapolis, IN. Sold to Thompson, then closed.
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