Edwin H Armstrong Papers

4 letters and 1 memorandum. Letter to the editor of Fortune Magazine (4 sheets, 4 pages), on printed letterhead of Columbia University in the City of New York, Department of Electrical Engineering, 10 July 1951, concerning statements by "Mr. Weil of Macy's" in an article in the June 1951 issue of Fortune. Copy of letter from L.P. Lessing, Board of Editors, Fortune Magazine (1 sheet, 1 page), 6 August 1951, responding to Armstrong's letter. Letter to T.J. Slowie, Federal Communications Commission (1 sheet, 1 page), 10 August 1950, with enclosed copy of another letter. Copy of letter to W.R.G. Baker, Radio and Television Manufacturers Association (3 sheets, 3 pages), on printed letterhead of Columbia University in the City of New York, Department of Electrical Engineering, 1 August 1950, concerning interference problems with FM receivers, accompanied by a memorandum (1 sheet, 1 page) summarizing results of lab tests and signed "FGH - 6/29/49".