| Call number | Item |
| T | Technology (Go to start of category) |
| TK | Electrical Engineering (and computer networks); Nuclear Engineering (Go to start of category) |
| TK5241 .T6 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Masters of Space: Morse and the Telegraph; Thompson and the Cable; Bell and the Telephone; Marconi and the Wireless Telegraph; Carty and the Wireless Telephone (1917), by Walter Kellogg Towers (Gutenberg text) |
| TK5243 .M7 A3 | Samuel F. B. Morse: His Letters and Journals (2 volumes; 1914), by Samuel Finley Breese Morse, ed. by Edward Lind Morse |
| TK5700 .H6 | Jahrbuch der Drahtlosen Telegraphie und Telephonie (partial serial archives) |
| TK5711 .F2 | A History of Wireless Telegraphy: Including Some Bare-Wire Proposals for Subaqueous Telegraphs (second edition, revised; Edinburgh and London: W. Blackwood and Sons, 1901), by J. J. Fahie (multiple formats at archive.org) |
| TK5711 .S35 | The Electric Word: The Rise of Radio (New York: Macmillan, 1928), by Paul Schubert (PDF at worldradiohistory.com) |
| TK5739 .M3 D8 1937 | Marconi: The Man and His Wireless (New York: Macmillan, 1937), by Orrin E. Dunlap (multiple formats at archive.org) |
| TK5741 .C7 | Wireless Telegraphy: Its History, Theory and Practice (New York: McGraw Pub. Co., 1905), by A. Frederick Collins (multiple formats at archive.org) |
| TK5741 .M7 | Radio-Telegraphy (London: A. Constable and Co., 1908), by C. C. F. Monckton (PDF at worldradiohistory.com) |
| TK5742 .U44 | Study Guide and Reference Material for Commercial Radio Operator Examinations (Washington: GPO, 1955), by United States Federal Communications Commission (PDF at worldradiohistory.com) |
| TK5743 .L43 1942 | Learning the Radiotelegraph Code (first edition; West Hartford, CT: American Radio Relay League, 1942), by John Huntoon (page images at HathiTrust; US access only) |
| TK5746 .N5 | Radio Questions and Answers on Government Examination for Radio Operator's License (first edition; New York and London: McGraw-Hill Book Co., 1921), by Arthur R. Nilson (page images at HathiTrust) |
| TK5981 .C76 | Audio Measurements (New York: Gernsback Library, c1958), by Norman H. Crowhurst (PDF at worldradiohistory.com) |
| TK5981 .C77 | Basic Audio (3 volumes in 1; New York: J. F. Rider, c1959), by Norman H. Crowhurst (PDF at worldradiohistory.com) |
| TK5981 .M3 | Acoustic Design Charts (Philadelphia: The Blakiston Co., c1942), by Frank Massa |
| TK5981 .T8 1954 | How to Service Tape Recorders (New York: J. F. Rider, c1954), by C. A. Tuthill (PDF at worldradiohistory.com) |
| TK6015 .C3 | The History of the Telephone, by Herbert Newton Casson |
| TK6018 .B4 A5 | The Bell Telephone: The Deposition of Alexander Graham Bell, in the Suit Brought by the United States to Annul the Bell Patents (Boston: American Bell Telephone Co., 1908), by Alexander Graham Bell, contrib. by Charles H. Swan |
| TK6175 .B4 1959 | Transmission Systems for Communications (2 volumes; New York: Bell Telephone Laboratories, 1959), by Bell Telephone Laboratories (page images at HathiTrust) |
| TK6540 .B78 | Radio Times (full serial archives) |
| TK6540 .N365 | National Radio News (partial serial archives) |
| TK6540 .R17 | Pacific Radio News (full serial archives) |
| TK6540 .R17 | Radio (successor of Pacific Radio News; 1921-1947) (partial serial archives) |
| TK6540 .R2 | Radio Age, ed. by Frederick Arthur Smith (full serial archives) |
| TK6540 .R232 | Radio Stars (full serial archives) |
| TK6540 .R34 | Radio Craft (partial serial archives) |