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The company was co-founded by Ralph Matthews and Karl Hassel [4] in Chicago, Illinois, as Chicago Radio Labs [5] in 1918 as a small producer of amateur radio equipment. The name "Zenith" came from ZN'th, a contraction of its founders' ham radio call sign, 9ZN. They were joined in 1921 by Eugene F. McDonald, [5] and Zenith Radio Company was ...
He joined with Ralph Matthews and Karl Hassel, the three of them incorporating the Zenith Corporation (formerly Chicago Radio Labs) in 1923. [2] From the call letters of their amateur station, 9ZN, they developed the trade name of ZN-th. The company survived the Great Depression and was soon the leader of radio manufacturers. At the same time ...
WJAZ was first licensed on August 17, 1922 [2] to the Chicago Radio Laboratory (reorganized in 1924 as the Zenith Radio Corporation), for operation on the standard "entertainment" wavelength of 360 meters (833 kHz). [3] Its call letters were randomly assigned from a sequential alphabetical list maintained by the Department of Commerce.
The station began broadcasting on February 2, 1940, as experimental station W9XEN, licensed to Chicago-based radio/television manufacturer Zenith Radio Corporation. [ 3 ] [ 9 ] In May 1940, the Federal Communications Commission (FCC) announced the establishment, effective January 1, 1941, of an FM radio band operating on 40 channels spanning 42 ...
Phonevision was a project by Zenith Radio Company to create the world's first pay television system. [1] It was developed and first launched in Chicago , followed by further trials in New York City and Hartford, Connecticut .
He attended the City Colleges of Chicago and Armour Institute of Technology, [1] but he left before graduating. [2] In 1935, he was hired as a stock boy for Zenith Electronics ; he moved to the company's parts department, where he created the company's first catalog, then transferred to engineering, where his assignments included work on radar ...
Zenith Radio Corp. v. Hazeltine Research, Inc. is the caption of several United States Supreme Court patent–related decisions, the most significant of which is a 1969 patent–antitrust and patent–misuse decision concerning the levying of patent royalties on unpatented products.
Invoking the Intercity Radio Company case rulings, Zenith ignored the Commerce Department's order to return WJAZ to its assigned frequency. On January 20, 1926, a federal court suit, United States versus Zenith Radio Corporation and E. F. McDonald, was filed in Chicago. McDonald expected a narrow ruling in his favor, claiming that only a small ...