[Hallicrafters] Did Power Line Voltage Increase from 110 to 120V?

[Jim Hill]

There have been many posts telling how line voltage increased from 
110 to 120V over the years, and the bad effects on Hallicrafters and 
other boatanchor receivers.  Here's an interesting link which sounds 
like it didn't, or was the voltage 220 in the past?

http://www.faqs.org/faqs/electrical-wiring/part1/section-14.html

Any comments?

Jim