Postai és Távközlési Múzeumi Alapítvány Évkönyve, 2002

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László Jakab: Supplying the Power for Crossbar Switchboards Prior to 1970, all that Hungary had were Type 7A electromechanical rotary telephone switchboards, powered by electric dynamos or selenium rectifiers. Lead batteries served as back ups, to keep the switchboards running if there was a problem with the mains. The 1970s marked a period of significant change in the switchboards and their power sup­plies. Starting in 1971, Hungary introduced the AR crossbar systems manufactured by Swedish-based Ericsson, but the power supply was not included in the contract between Hungary and Ericsson. So, the power to the AR switchboards came from domestically designed series converter systems, which, together with their designers, are discussed in detail in the current paper. Károly Juhász: Container Switchboards in Hungary One obstacle to increasing the number of telephones in Hungary in the 1970s was a short­age of switchboards, which were both expensive and took a long time to build. After several container-based switchboards were brought into Hungary and began operation, telecom factory BHG Híradástechnika and the Hungarian Post Office were pressured to develop a container switchboard that could be manufactured domestically, that was easy to transport, could be installed quickly, and would run reliably without having to be su­pervised. The manufacture of these containers began on August 18, 1978. In all, 199 containers were produced. Nineteen were sold outside of Hungary, but the rest all went into operation within the country, the first in Kőbánya (Budapest), and the last in Rétság, on June 30, 1993. The author reviews the history of these domestically manufactured container switchboards, the models made, the equipment they used, the principles under which they operated, and their strong and weak points. Norbert Leskó: IT in Museums In most museums in Hungary, information on collections is stored in hard copy systems. However, new rules on registering information and inventories allow computerized data­bases. International trends reflect growing use of IT in museums in recent years, where computers are increasingly used to register and account, as well as to display information. The museums have been given new opportunities to step beyond themselves, to commu­nicate with their audiences through new channels, and to attract new audiences. In Hun­gary, even the methods of registering inventories are outdated. When introducing new systems, however, it is worth paying attention to international trends and to seek methods which show a natural affinity for the new technologies. If, when advancing accounting systems, the phase of software applications designed specifically for local networks is skipped, the gap between Hungary and the more advanced countries can be reduced. Ferenc Hernitz - Ildikó Várkonyi Makkai: Kőszeg’s Postal History In 2002, the city of Kőszeg asked the Foundation of the Postal and Telecommunication Museum to organize a comprehensive postal history exhibition to serve as a permanent 350

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