Ericsson AGF telephone exchange 500 line selector demo
22:38
My vintage Strowger Telephone Exchange Demonstrator
13:40
Ericsson XY selector demo
8:29
Wijk-telefooncentrale Rotterdam-Centrum 14 ARF AXE
17:48
EEVblog #1177 - Ericsson PABX Teardown
9:10
Buying An Old 1960's Strowger Telephone Exchange For Restoration!
27:08
At the Connections Museum: the insane telephone technology that led to today's computers
14:28
The Coming of the Dial (1933)
30:17