DocumentCode
939060
Title
A Beam-Indexing Color Picture Tube-The Apple Tube
Author
Barnett, G.F. ; Bingley, F.J. ; Parsons, S.L. ; Pratt, G.W. ; Sadowsky, M.
Author_Institution
Res. Div. and Lansdale Tube Co., Philco Corp., Philadelphia, Pa.
Volume
44
Issue
9
fYear
1956
Firstpage
1115
Lastpage
1119
Abstract
This paper describes the Apple color picture tube, its dimensions, materials of construction, deflection and focus systems, and the geometry and deposition of the phosphor and secondary-emissive screen materials. The construction and operation of the electron gun, which produces two independent beams of very small cross section from a single cathode, are described in detail. Life test data and pilot production experience are discussed.
Keywords
Building materials; Cathodes; Circuits; Electron beams; Electron tubes; Geometry; Phosphors; Signal resolution; Structural beams; Writing;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1956.275163
Filename
4052168
Link To Document