Details

File containing printed and typescript material related to Hendry's work on the Image Orthicon, including: - 5 printed copies of abstract for 'Ten Years' Progress in Image Orthicons', by W. E. Turk, E. D. Hendry, and R. L. Beurle, a paper presented at the International Television Conference 1 June 1962 - Typescript copy of 'Ten Years' Progress in Image Orthicons', by W. E. Turk, E. D. Hendry, and R. L. Beurle, with index and appendices - Untitled typescript paper on history of photoconductive camera tubes - Bound copy of 'An Improved Image-Orthicon', a paper by E. D. Hendry and W. E. Turk, reprinted from the Journal of the Society of Motion Picture and Television Engineers, February 1960, issued with the compliments of the English Electric Valve Company - Bound paper by G. Baldwin Banks, K. Frank, and E. D. Hendry, members of the English Electric Valve Company, Chelmsford, Essex, read to the Television Society, 8 May 1952. Preprinted from the Journal of the Television Society, in association with the English Electric Valve Company. [See also NAEST 214/3/1/1] - Correspondence between Hendry, English Electric Valve Company, the Visual Electronics Corp, New York, and W. L. Hughes, Vice Chairman of the Professional Group on Broadcasting, on the accpetance of Hendry's paper at the Professional Group on Broadcasting Fall Symposium, Institute of Radio Engineers, 1961. - 'Design and Operational Parameters of Image Orthicon Tubes 4 1/2 inch and 3 inch field mesh types', a paper presented by E. D. Hendry, at the Eleventh Annual Broadcast Symposium, Sponsored by the IRE Professional Group on Broadcasting, October 6-7, 1961, at thw Willard Hotel, Washington D.C.