On Thu, 20 Sep 2018 08:01:18 -0700, allisellis851 wrote:

+AD4 Wasen't long ago in California electric motors were 50 cycle instead of 60
+AD4 cycle nowadays.

True. Specifically, it was only the Los Angeles area, but still true. Alot of the radios from that time (sorry) were rated for 50/60 cps.

In Japan, the 50/60 split was about even and they never rectified it.