[BC] Happy birthday and thanks for the electricity Nikola

[Broadcast List USER]

I don't know that there is much DC left.  I thought NYC was last, and  
I saw a NYTimes article a while ago about the last few buildings being  
provided with converters so ConEd could shut down the last DC plants.

I don't know where else this exists.

Of course, subways, and railroads still use 600 Volt DC (plus or  
minus) systems.  I cannot see how those will ever go away.

--chip

On Jul 11, 2009, at 1:00 PM, broadcast-request at radiolists.net wrote:

> Message: 3
> From: Jerry Mathis <thebeaver32 at gmail.com>
>
> [...]
> Edison's public electricity system, based on D-C, was rather quickly
> replaced with Westinghouse's polyphase A-C system. Pockets of  
> Edison's D-C
> system still exist today, although I really wonder why. Too  
> expensive to
> modernize those old elevators?
>
> --
> Jerry Mathis