American Telephone & Telegraph, Jan. 1949; pp 1-163; illus, photos, references; light blue paper wraps.
Condition: Fair condition only; covers have old soil & light stains, old celephane tape along entire spine & part of top margin; also several holes & several creases as if staples were pulled out; hole abrasions continue through the first 2 page corners; front cover detached from spine, held on by the tape; rear cover beginning to loosen. Stamps on cover & first page of RCA Victor Division library in NJ with datestamp of Mar 15 1949; pocket & card attached inside rear cover. Pages are clean & unmarked, tho thumbed, with some light but noticeable vertical creasing on some pages.
Categories: 1950's computers and computing, Computer Science, Electronic and Electrical Engineering, Highspots in the History of Computing, Mathematics, Technical Journals, Proceedings, Conferences, Bell System Technical Journals, BSTJ 1940 - 1949
See all items by Claude E. Shannon
Item DescriptionVolume XXVIII Number 1, January 1949 -- CONTENTS -- Propagation of TE01 Waves in Curved Wave Guides (Albersheim);
A New Type of High-Frequency Amplifier (J R Pierce & W B Hebenstreit; Experimental Observation of Amplification by Interaction between Two Electron Streams (A V Hollenberg); The Synthesis of Two-Terminal Switching Circuits (Claude E Shannon);
A Method of Measuring Phase at Microwave Frequencies (Sloan D Robertson); Reflection from Corners in Rectangular Wave Guides - Conformal Transformation (S O Rice); A Set of Second-Order Differential Equations Associated with Reflections in Rectangular Wave Guides - Application to Guide Connected to Horn (S O Rice); abstracts of technical articles by Bell System authors; contributors to this issue. Shannon's article, pp 59 through 98 inclusive (bottom of page 59 has a notation written in faded blue ink, pencil checkmarks next to several of the references at end of the article);.