4 ms·
They actually used that in the US as well for railways. I remember a post years ago on the Classic Computer Mailing List from someone who said that their father
by ErroneousBosh 11mo ago
They actually used that in the US as well for railways. I remember a post years ago on the Classic Computer Mailing List from someone who said that their father had worked on the railways and pointed out that the "high bay" station lighting all ran off 3-phase 16.7Hz power. Apparently it looked okay at ground level but was quite disconcerting when you looked up and saw the lights flickering in patterns of three.
- MrFlynn 11mo agoEarly AC electrification systems in the US were typically 25Hz, not 16.7Hz. Parts of the northeast corridor still use 25Hz electrification.
- ErroneousBosh 11mo agoI'm trying to find the post, but it was definitely 16.7Hz. I don't know that it was particularly "early" as such, probably the 1950s or so.