Self Winding Master Clocks in Central Offices
23:18
How many different ways can we cause trouble in the 5XB?
12:34
How does telephone ringing work?
8:31
The Underground Clocks of Paris
3:58
1950s Switchboard Operations
4:35
Self Winding Master Clock Hourly Synchronizer - How it works
27:08
At the Connections Museum: the insane telephone technology that led to today's computers
29:52
Modern Sıcak Dövme Kullanılarak Büyük Dişli Bilyalı Rulmanlar Yapma Süreci
9:27