"Lawrence DčOliveiro" wrote in message
...
In article IUuud.17248$U47.1533@clgrps12, "NSM"
wrote:
http://www.antiquewireless.org/otb/60cycles.htm
Typical US-centric--no mention of 50Hz.
Not just US, but all of North America, that's probably where it was written,
hard to blame them. The story on 50Hz is pretty similar I'm sure.