Claude E Shannon / Feedback Systems with Periodic Loop Closure Case 37003 File

Description: Feedback Systems with Periodic Loop Closure: Case 37003; File 36690-2 MM-44-110-32 [Bell Laboratories Technical Memorandum] Author: Shannon, Claude E. [Elwood] Title: Feedback Systems with Periodic Loop Closure: Case 37003; File 36690-2 MM-44-110-32 [Bell Laboratories Technical Memorandum] Publication: Murray Hill, N. J. Bell Telephone Laboratories, Incorporated March 16, 1944 Edition: Later printing Description: One Memorandum group highlighting three different reproduction techniques, all 10 7/8 x 8 3/8 inches.1) One leaf. Printed "Cover Sheet for Technical Memoranda" form on thin translucent typewriter paper (watermarked "Esleek Superior Manifold"). Names, subject, abstract, etc are a typescript carbon copy. Four holes punched at the spine. 2) [1]-3 pages printed on verso only + one leaf ( containing 3 figures ). Ditto'd (spirit duplicated) with purple ink. An inked correction to MM number is present on page [1].3) the last leaf is a Plate. Positive blueprint with sharp blue ink lines. The verso has a circular inked stamp with "Printed (?) | Sep 21 1944 | New York". The five leaves are held together with a short square metal paperclip with associated creasing. Near Fine. Wraps. There were five examples of this paper in Shannon's files with a small penciled note clipped to them: "9/21 Miss Wiggins : Attached are 5 more copies as promised. M. K. C." This example (our stock #28974) includes a modern copy of that note."In the design of a system for automatic frequency control, the question of stability criteria for a feedback system whose loop is closed periodically for short intervals has arisen..." (first page).Cover Sheet Abstract: "Conditions are derived analogous to the Nyquist criterion for stability in a feedback system which is closed periodically for short intervals of time." Eight Bell Lab scientists are on the distribution list.PROVENANCE: The personal files of Claude E. Shannon (unmarked). Five copies were found in Shannon's files. One example with an original typed Memorandum cover and penciled note. The other four [as here] with typescript carbon of the Memorandum cover sheet.REFERENCES:Sloane and Wyner, "Claude Elwood Shannon Collected Papers," #18 Seller ID: 28974 Subject: Bell Labs, History of Communication, Mathematics, Software Engineering Kuenzig Books Topsfield MA USA Since 1996 Kuenzig Books has bought and sold rare and/or interesting items in many fields with a focus on 19th and 20th century Science, Technology, and Engineering. We are particularly interested in the History of Computing, and the speed with which the technological innovations of the 20th century have impacted the way we live. You'll discover some depth in Physics, Mathematics, Nobel Prize authors, Computing, Scientific Instruments, and Chemistry. We are members of the ABAA (Antiquarian Booksellers' Association of America), ILAB (International League of Antiquarian Booksellers), SNEAB (Southern New England Antiquarian Booksellers), and IOBA (The Independent Online Booksellers Association). We often have material not listed here, please ask if you are looking for something specific. International Buyers Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs (if any) will be prior to bidding or buying if you are unfamiliar with this. We will not misrepresent the content or value of items on customs forms. We are not responsible for any customs delays, custom fees or any other related custom issues. Once we send shipping confirmation, be sure to check regularly with your local customs or post office to ensure that shipments are not returned "unclaimed". If packages are returned to us "unclaimed" we are happy to resend them but will require separate payment from you for the second shipping charge. Terms and Conditions If you have any questions, please ask before bidding. We package carefully so that your items get to you in the condition they were sent. We ship to PayPal verified addresses only. Any refund fees charged to us by PayPal for payments that don't match the verified addresses will be deducted from your refund. Delivery time frames can only be estimated and will depend on the service used, shipping origin, and destination. Payment All payments in US dollars. Payment must be received within 5 days. Please note that our prices on this venue are increased to reflect the fees charged here. Feedback We leave feedback for buyers once they have posted feedback for us. If you are unhappy with any aspect of a transaction with us, please contact us immediately. We work hard to keep buyers happy and to resolve the rare problem promptly. This listing was created by Bibliopolis.

Price: 288 USD

Location: Topsfield, Massachusetts

End Time: 2025-01-21T21:15:52.000Z

Shipping Cost: 6.13 USD