| #491 | Television digest with consumer electronics : The authoritative service for broadcasting, cable, consumer electronics and allied fields. -- Washington : Television Digest, 1984-2003. -- ISSN 0497-1515 |
| #492 | Tesla electronics. -- Česká republika : Praha : Tesla, 1968-1987. -- ISSN 0563-1823 |
| #493 | Tesla elektronik. -- Česká republika : Praha : Tesla, 1970-1980. -- ISSN 0322-7782 |
| #494 | Test and measurement world : The magazine for quality in electronics. -- Boston : Interfield Pub., 1981-. -- ISSN 0744-1657 |
| #495 | The electronic engineer. -- Spojené státy americké : Philadelphia : Chilton Co.,, 1966-1973. -- ISSN 0013-4899 |
| #496 | The Institute. -- Spojené státy americké : New York : Institute of Electrical and Electronics Engineers, 1977- |
| #497 | The Proceedings of the Institution of electronics. -- Velká Británie : London : Forum publ,, 1953-1958 |
| #498 | The Wireless engineer. -- Velká Británie : London : Iliffe & Sons, 1936-1956. -- ISSN 0268-6465 |
| #499 | Titel von Veröffentlichungen über Analog- und Ziffernrechner und ihre Anwendungen. -- Německo : Wiesbaden : F. Steiner, 1962-1966 |
| #500 | Tokyo Kōgyō Daigaku Seimitsu Kōgaku Kenkyūjo yōran. -- Tokyo : Precision and Intelligence Laboratory, 1956-2003. -- ISSN 1343-8719 |