| #501 | Tech Magazine. -- Praha : Ikotech, 2008-. -- ISSN 1803-1609 |
| #502 | Technický sborník Slovenskej akadémie vied a umení pre odbor strojne-elektrotechnický. -- Slovenská republika : Bratislava : Slovenská akadémia vied a umení, 1950-1952 |
| #503 | Technology and society. -- New York : Institute of Electrical and Electronics Engineers, 1977-1981. -- ISSN 0194-3359 print. -- ISSN 2379-5646 online |
| #504 | Television digest with consumer electronics : The authoritative service for broadcasting, cable, consumer electronics and allied fields. -- Washington : Television Digest, 1984-2003. -- ISSN 0497-1515 |
| #505 | Tesla electronics. -- Česká republika : Praha : Tesla, 1968-1987. -- ISSN 0563-1823 |
| #506 | Tesla elektronik. -- Česká republika : Praha : Tesla, 1970-1980. -- ISSN 0322-7782 |
| #507 | Test and measurement world : The magazine for quality in electronics. -- Boston : Interfield Pub., 1981-. -- ISSN 0744-1657 |
| #508 | The electronic engineer. -- Spojené státy americké : Philadelphia : Chilton Co.,, 1966-1973. -- ISSN 0013-4899 |
| #509 | The Institute. -- Spojené státy americké : New York : Institute of Electrical and Electronics Engineers, 1977- |
| #510 | The Proceedings of the Institution of electronics. -- Velká Británie : London : Forum publ,, 1953-1958 |