Learning to use the dial telephone (Bell System/AT&T - 1940): https://www.youtube.com/watch?v=p45T7U5oi9Q
@lauren I really love everything about this video, including the part where dialtone used to sound like the wail of demons straight from hell.
@mtomczak The reason they sounded so bad is that they were basically just capacitor coupled to a power supply. There was no actual tone generator per se like on modern systems.
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@mtomczak The reason they sounded so bad is that they were basically just capacitor coupled to a power supply. There was no actual tone generator per se like on modern systems.