Tungsram
.jpg)
Tungsram is a Hungarian electronics company which was established in Újpest in 1896. The firm produced telephone apparatuses, wires, and telephone switchboards since the establishment of the company. The name "Tungsram" is a portmanteau of "tungsten" /ˈtʌŋstən/ and "wolfram" /ˈwʊlfrəm/ (as tungsten, the metal used for making the filaments, is known in Hungarian, German and many other languages).
On 13 December 1904, Hungarian Sándor Just and Croatian Franjo Hanaman were granted a Hungarian patent (No. 34541) for the world's first tungsten filament lamp. The tunsgten filament lasted longer and gave brighter light than the carbon filament. The tungsten incandescent light bulbs are often called Tungsram-bulbs in many European countries. Later in 1934, they also announced a patent for Imre Bródy's electric bulb filled with krypton. Both provided a longer lifetime for electric bulbs. Since the WW1, the mass production of radio tubes began, which became the most profitable branch of the company.[1]
The British Tungsram Radio Works was subsidiary of the Hungarian Tungsram in pre-war days.
General Electric, in 1990, acquired majority share in one of Hungary's largest, oldest, and internationally most prestigious firms, the light-source manufacturer Tungsram. Over the past six years GE has invested $600 million in the venture and thoroughly restructured every aspect of its operations. It is the largest U.S. manufacturing investment in Central and Eastern Europe to date.[2] It is now a subsidiary of General Electric and its name is used as a brand name only.
See also
- Tungsram SC (sports club)
External links
References
- ↑ Károly Jeney, Ferenc Gáspár, English translator:Erwin Dunay (1990). The History of Tungsram 1896-1945 (PDF). Tungsram Rt. p. 11. ISBN 978-3-939197-29-4.
- ↑ http://www.worldbank.org/html/prddr/trans/janfeb97/art9.htm
| |||||||||||||||||||||||||||||||||||||||||||||
