Used by the British G.P.O for many years, this is a Master clock No. 36, being run from a clock unit GMT 34. These would run the slave clocks in a building plus the timing for Strowger telephone exchanges.
More information on all G.P.O. clocks can be found at:http://gpoclocksystems.byethost22.com
Museum volunteer Ed Mattson gives a tour of the 5XB from Mercer Island’s ADams exchange.
This video is captioned, because the 5XB can get loud sometimes 😉
More footage from the vaults…As far as I can tell, this was shot by a PNB cameraman in a No. 5 Crossbar (5XB) office on Mercer Island, just east of Seattle. This would be the same 5XB that can be seen today in the museum.
Centrala telefoniczna Pentaconta 1000C. Koniec lat 90-tych XX wieku.
Pentaconta 1000C telephone exchange. Late 90’s of 20th century.
in questo video ci viene illustrato il funzionamento di una centrale Telefonica Siemens Anni 80 da un preparatissimo volontario dell’associazione Volontari Gruppo di Treviglio
Una vista a una vieja central telefónica de barras cruzadas (Pentaconta)
https://www.youtube.com/watch?v=8uPpVuuLOog
Bouw&Inrichting,Kabels aansluiten,schotel voor straalzender
plaatsen,huisvesting,opening,etc.Heel lang geleden.Met dank aan computerclub”Vitesse”van KPN die de foto’s,uit oude fotoalbums v/h Telefoondistrict Arnhem(PTT),heeft gedigitaliseerd.
Een kijkje in een van de grootste wijk-telefooncentrale van Nederland Rotterdam-Centrum.
Te zien is oa de oude telefooncentrale een Ericsson kruisschakelaar systeem type ARF.
Daarnaast ook een computergestuurde telefooncentrale Ericsson type AXE
Zeitansage Magnetton von 1958
Ausgestellt im Telekom-Historik Museum Bochum.
(http://www.telekom-historik.de/)
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