First edition An idea book for engineers, experimenters, and designers of radio and associated equipment, edited by James Millen; with drawings by M. B. Sleeper
"Editor's corrections": leaf attached to p. [3] of cover.
Includes "Technical manual, Sylvania 'set tested' radio tubes, compiled and published by Hygrade Sylvania corporation [1934]", "Instruction manual for the new H.R.O. communication receiver ... by James Millen and Dana Bacon [1935]", "National company, inc., engineers and manufacturers. Descriptive price list. Bulletin, no. 240. National radio products [1935?]", and "Acme-delta ... Raytheon manufacturing company (Bulletin DL48-13)"; each part has special t.-p.