| #491 | Spectrum : Fachinformation von LOT-QuantumDesign Darmstadt. -- Německo -Germany : Darmstadt : LOT-Oriel, 1982 Darmstadt : LOT-QuantumDesign, 1996-2009 |
| #492 | Stereo&Video. -- Praha : Trade & Leisure Publications, 1993-. -- ISSN 1210-7026 |
| #493 | Systems & control letters. -- Amsterdam : Elsevier, 1981-. -- ISSN 0167-6911 |
| #494 | tec.News : technologický magazín společnosti Harting. -- Espelkamp : Harting, 2010- |
| #495 | Tech Magazine. -- Praha : Ikotech, 2008-. -- ISSN 1803-1609 |
| #496 | Technický sborník Slovenskej akadémie vied a umení pre odbor strojne-elektrotechnický. -- Slovenská republika : Bratislava : Slovenská akadémia vied a umení, 1950-1952 |
| #497 | Technology and society. -- New York : Institute of Electrical and Electronics Engineers, 1977-1981. -- ISSN 0194-3359 print. -- ISSN 2379-5646 online |
| #498 | Television digest with consumer electronics : The authoritative service for broadcasting, cable, consumer electronics and allied fields. -- Washington : Television Digest, 1984-2003. -- ISSN 0497-1515 |
| #499 | Tesla electronics. -- Česká republika : Praha : Tesla, 1968-1987. -- ISSN 0563-1823 |
| #500 | Tesla elektronik. -- Česká republika : Praha : Tesla, 1970-1980. -- ISSN 0322-7782 |