| Call number | Item |
| T | Technology (Go to start of category) |
| TK | Electrical Engineering (and computer networks); Nuclear Engineering (Go to start of category) |
| TK6540 .W45 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) What's On the Air (1929-1931) (partial serial archives) |
| TK6544 .C6 | Radio Alphabet: A Glossary of Radio Terms (New York: Hastings House, 1946), by Columbia Broadcasting System, inc. (page images at HathiTrust) |
| TK6545 .A1 G7 | Radio Round-Ups: Intimate Glimpses of the Radio Stars, by Joseph Gurman and Myron Slager (PDF at worldradiohistory.com) |
| TK6545 .H6 N9 1957 | "Hoop" of Hooperatings: The Man and His Work (1957), by Frank Wilson Nye (PDF at worldradiohistory.com) |
| TK6545 .S6 A3 | Forty Years of Radio Research: A Reportorial Account (New York: Gordon and Breach, 1962), by George Southworth, contrib. by Lloyd Espenschied (PDF at worldradiohistory.com) |
| TK6547 .R3 | The Radio Industry: The Story of its Development, As Told by Leaders of the Industry to the Students of the Graduate School of Business Administration, George F. Baker Foundation, Harvard University (Chicago et al.: A. W. Shaw, 1928), contrib. by David Sarnoff, J. Anton De Haas, Elmer Eustice Bucher, James G. Harbord, Frank B. Jewett, E. P. Edwards, Stephen B. Davis, H. P. Davis, Merlin Hall Aylesworth, J. L. Ray, Pierre Boucheron, and Harold C. Weber (PDF at worldradiohistory.com) |
| TK6548 .U6 | History of Radio to 1926 (New York: American Historical Society, c1938), by Gleason L. Archer |
| TK6548 .U6 A82 | Big Business and Radio (New York: American Historical Co., c1939), by Gleason L. Archer (page images at HathiTrust) |
| TK6548 .U6 C45 1942 | Sound and Fury: An Informal History of Broadcasting (New York and London: Harper and Bros., c1942), by Francis S. Chase (page images at HathiTrust) |
| TK6548 .U6 L3 1942 | Who, What, Why is Radio? (first edition; New York: G. W. Stewart, c1942), by Robert J. Landry (page images at HathiTrust) |
| TK6548 .U6 L3 1946 | Who, What, Why is Radio? (revised edition; New York: G. W. Stewart, ca. 1946), by Robert J. Landry (PDF at worldradiohistory.com) |
| TK6550 .D4 | "WWJ, The Detroit News": The History of Radiophone Broadcasting by the Earliest and Foremost of Newspaper Stations; Together With Information on Radio for Amateur and Expert (Detroit: Evening News Association, 1922), by Detroit News (Firm) (multiple formats at archive.org) |
| TK6550 .D82 1935 | The Story of Radio (second edition; New York: The Dial Press, 1935), by Orrin E. Dunlap (PDF at worldradiohistory.com) |
| TK6550 .G25 | Radio for All (Philadelphia and London: J.B. Lippincott Co., 1922), by Hugo Gernsback |
| TK6550 .G6 | Radio Telephony (New York: The Wireless Press, c1918), by Alfred N. Goldsmith (multiple formats at archive.org) |
| TK6550 .K3 1922 | The A.B.C. of Radio: The Underlying Principles of Wireless Telephony in Simple Language With Explanatory Drawings and Glossary (second edition; New York: M. H. Ray, c1922), by Waldemar Kaempffert (page images at HathiTrust) |
| TK6550 .M29 | The MYE Technical Manual (Indianapolis: P. R. Mallory and Co., c1942), by and Co. P. R. Mallory (page images at HathiTrust) |
| TK6550 .M295 | Elements of Radio (New York and San Francisco: Prentice-Hall, 1943), by Abraham Marcus and William Marcus, ed. by Ralph E. Horton (PDF at worldradiohistory.com) |
| TK6550 .S29 | Radio Electronics (New York et al.: McGraw-Hill Book Co., 1956), by Samuel Seely (PDF at worldradiohistory.com) |
| TK6550 .T35 | Basic Radio Repair (2 volumes in 1; New York: J. F. Rider, 1963), by Marvin Tepper (PDF at worldradiohistory.com) |
| TK6550 .T53 | Magic Dials: The Story of Radio and Television (New York: Lee Furman, 1939), by Lowell Thomas, illust. by Anton Bruehl (PDF at worldradiohistory.com) |
| TK6550 .T9 | Modern Radio (New York: Harcourt, Brace and Co., c1944), by Kingdon S. Tyler, illust. by James Mac Donald (PDF at worldradiohistory.com) |
| TK6553 .C73 | Repairing Portable and Clock Radios (New York: J. F. Rider, c1958), by Ben Crisses and David Gnessin (PDF at worldradiohistory.com) |
| TK6553 .H6 | Radio as a Career (from the Kitson Careers series; New York and London: Funk and Wagnalls, 1940), by J. L. Hornung (PDF at worldradiohistory.com) |
| TK6553 .H8 | Frequency Modulation, by August Hund (PDF at worldradiohistory.com) |