Dialing Through The Step-by-Step Telephone Switching System
4:09
Putzing With The Payphone
1:40:10
The Line Finder In The Step-By-Step Telephone Switching System
20:20
The Dial Comes To Town
14:39
"Long Distance" A short documentary on how long distance calls work - Circa 1941
1:10:41
The Selector In The Step-By-Step Telephone Switching System Part 1
3:13
The Making of Information Age: Enfield Telephone Exchange
18:24
Recicle as baterias usadas! Como fazer uma máquina de solda simples com bateria de 1,5 V
27:08