Category: Magazines

On the Cover The beginning of a product line: William Housekeeper of the Western Electric Co. enginneering staff holding a 100-kW developmental tube made with the knife-edge copper-to-glass seal that he had patanted in 1919. In this issue

The RCA “Selling Fool” doll, a retailer display aid designed ca. 1926 by the major cover/commercial artist Maxfield Parrish. The “Fool” replaced the “Radiotron Man” figure as seen on the Feb. cover, although Web postings about the doll often use the “Radiotron” name. RCA’s $5 price for a quqetet of dolls is ironic – this...

On the Cover Two historically important cathode-ray tubes: the RCA 906, ca. 1935: and the tektronics T51, ca.1954. See Peter Keller,s synopsis of CRT history in this issue. In this issue

On the Cover The overall assembly drawing for a 36 tube, from RCA Standardizing notice 3-1-236, May 30, 1931 In this issue

On the Cover A variety of ’30’s-vintage tube ans carton labels from RCA In this issue

On the Cover Amperex cover sheet featuring the 8505. In this issue

On the Cover The well reputed EL84/6BQ5 output tube. In this issue

On the Cover On The Cover: A British playing card promoting the Mazda brand. In this issue

On the Cover Old-time “image” advertisement for Mullard tubes. In this issue