A useful source:
https://worldofsockets.com/
this post was submitted on 29 Jul 2025
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I really think we should give japan more shit for this. Type A is terrible on it's own merits, they don't even polarize it. But then they have the gall to use two different frequencies with the divide in the middle of Honshu (the big island with the major cities). And unlike reasonable people they don't do a "50 hz gets this plug, but 60 gets a non compatible one". No, both use the plug that North America phased out over safety concerns.
But to answer the question, type B is nice and homey, but types I and N feel a fun mix of weird and foreign but close enough to be interesting. Most of the rest just feel like various "yeah it's a circle with two circular prongs all right"
I never knew any of this. Wtf, Japan!?
Welcome to the world of history and two different electrifications.
What a mess. Fortunately, the frequency thing is less of an issue with modern power supplies, like my laptop charger is rated for 100-240V 50-60 Hz, so it Just Works. But I imagine that was more of a pain before these were widespread.