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  Your search for Books by Keywords = Telecommunications has returned 7 results:
Barnouw,  E.  International Encyclopedia of Communications.  New York:  Oxford University Press,  1989.  1st edition.  4 volumes  4to.  Cloth.  Fine condition.  Ex-library.  Very fine ex-library copy with scant markings.    (Book ID 14756) $200.00
Bell,  Alexander Graham.  The Photophone: 3 articles from NATURE, 1880..  London:  1880-1881.  Nature: Nov 4 & 18, 1880; February 10, 1881  Original printed wrappers.  Fine condition.  We offer the following three issues of NATURE covering the initial announcenments of Bell's future-provoking invention of the PHOTOPHONE: (1) Bell's Photophone, pp 15-19, with illustrations of the apparatus, running approximately 3000 words. (2) Shelford Bidwell, "Bell's Photophone", in 18 November 1880, pp 58-9, approximately 1750 words. (3) "Photophone Experiments", in 10 February 1881, page 354, approximately 400 words, two illustrations. These are among the earliest articles on Bell's fantastic invention utilizing his discovery of the photoacoustic effect--basically, transmitting wireless telephone conversations, a feat that would not be utilized until the last two decades of the 10th century. /// We offer the three issues in their original wrappers, cleanly removed from a larger bound volume with only trace elements of teh removal visible at their spines. Nice copies.   (Book ID 23187) $750.00
Bell,  Alexander Graham.  Upon a Modification of Wheatstone's Micropphone and its Applicability to Radiophonic Researches.  London:  Nature,  1881.  1st edition.  Nature, vol 24, 29 July 1881  8vo.  Printed wrappers.  Fine condition.  Bell's article (published 17 June 1881 in the Philosophical Society of Washington DC and based upon an earlier article of the Philosophical Transactions 1878) occupies pp 302-303, with two diagrams, running about 500 words. Fine condition, removed from a larger bound volume.   (Book ID 22961) $275.00
Cooley,  Austin G.  How to Receive Radio Pictures at Home.  New York:  Radiovision Corp,  1928.  1st edition.  26pp, 2 folding blueprints  4to.  Printed wrappers.  Very good copy.  Some wear and dirt on front wrapper.  This unusual publication describes the constrution and use of an apparatus which would receive boradcast (facsimile) images that would be used to illsutrate radio broadcasts. Francis Jenkins et al were right around the corner, so this idea (in this form). "No greater thrill awaits the radio experimenter than receiving his first picture through the ether…Not many months will pass before picture broadcasts will be a part of every radio broadcast" This system was offered by Austin G. Cooley, inventor of the Rayfoto system, "the first authentic radio picture apparatus". This was a very early attempt at mass entertainment via a mechanical medium that proved ineffective by 1929/1931 against the advances of television. (The radiovision method was something like a facsimile device, offering a static image every now and again, and was completely outclassed by the moving image). An interesting document in the history of telecommunications.   (Book ID 15158) $1,350.00
La Cour,  Paul.  Das Phonische Rad, theorie und seine anwendungen in der WIssenschaft, technik und telegraphie.  Leipzig:  QUandt & Haendel,  1880.  1st German edition.  63pp  8vo.  Printed wrappers.  Good or better condition.  Tiny perforated "LC" (Library of Congress) stamp on titlepage.  Translated from the French by Josef Karies, this pamphlet (which is largely unopened)has 14 small but fine text illustrations of the la Cour device. From the excellent website "Adventures in Cybersound": In 1860 Philipp Reis, produced a telephone which could transmit musical notes, and even a lisping word or two; and some ten years later Mr. Cromwell Fleetwood Varley, F.R.S., a well-known English electrician, patented a number of ingenious devices for applying the musical telephone to transmit messages by dividing the notes into short or long signals, after the Morse code, which could be interpreted by the ear or by the eye in causing them to mark a moving paper. These inventions were not put in practice; but four years afterwards Herr Paul la Cour, a Danish inventor, experimented with a similar appliance on a line of telegraph between Copenhagen and Fredericia in Jutland. In this a vibrating tuning-fork interrupted the current, which, after traversing the line, passed through an electro-magnet, and attracted the limbs of another fork, making it strike a note like the transmitting fork. By breaking up the note at the sending station with a signalling key, the message was heard as a series of long and short hums. Moreover, the hums were made to record themselves on paper by turning the electro-magnetic receiver into a relay, which actuated a Morse printer by means of a local battery.   (Book ID 21102) $350.00
Prescott,  George B..  Edison's Telephone and Acoustic Inventions.  New York:  Popular Science Monthly,  1878.  Pp 129-142  This article by the redoubtable Prescott appeared in the PSM in December 1878 some two years following Edison's announcement of his invention. The 22-page article is short but concise and contains 36 small illustrations. The whole is removed from a bound volume (#14) but contains its original wrappers. A nice copy of a very uncommon article. See also: George B. Prescott, Bell's Electric Speaking Telephone: Its Invention, Construction, Application, Modification, and History (New York: D. Appleton, 1884.   (Book ID 20935) $300.00
Randall,  N.H..  Summary of Radio Laws and Regulations for Station Owners and Operators.  Portland, Oregon:  1934.  1st edition.  48+12pp  4to.  Punch-bound mimeographed sheets.  Very good condition.  Randall was "Principal, Oregon Institute of Technology Radio School", and issued this mimeo production on his own in 1934. No copies in RLIN, LC or MARC databases.   (Book ID 14644) $500.00