General Telecommunications Forum

  1. Home
  2. General Telecommunications Forum
23448 Threads Posts
to

Worth reading in General Telecommunications Forum

Re: 25 Hz Power

> Boston Edison used to provide 600 volt DC service for the operation of > elevators and cranes. I don't know if they s...
0 comments posted 20yrs
posted by jcmorris
0 comments posted 20yrs posted by jcmorris

Re: 25 Hz power

> >> In NYC up into the 70's at least, power for two of the subway >> divisions (BMT and IRT) was generated at 25Hz but...
0 comments posted 20yrs
posted by dale
0 comments posted 20yrs posted by dale

Re: 25 Hz Power

> Boston Edison used to provide 600 volt DC service for the operation of > elevators and cranes. I don't know if they s...
0 comments posted 20yrs
posted by herb
0 comments posted 20yrs posted by herb

Re: 25 Hz Power

[snip] > I wonder how the telephone company rectified AC power for its DC > batteries. For large installations, a motor...
0 comments posted 20yrs
posted by william_warren_nonoise
0 comments posted 20yrs posted by william_warren_nonoise

Re: The 411 on Directory Assistance

> By FRED A. BERNSTEIN > The New York Times > March 9, 2006 > Calling 411 for directory assistance can be maddeningly e...
0 comments posted 20yrs
posted by shlichter
0 comments posted 20yrs posted by shlichter

Re: 25 Hz Power

> I don't know if true, but someone told me that in Europe they didn't > bother with three phase for house supply, but...
0 comments posted 20yrs
posted by wollman
0 comments posted 20yrs posted by wollman

25 Hz Power

> Hi Wes ... > I know the Great Northern Railroad used electric locomotives through > mountain passes in Washington Sta...
0 comments posted 20yrs
posted by mgk920
0 comments posted 20yrs posted by mgk920

Re: Verizon Targets MDUs for FiOS Penetration

> USTelecom dailyLead > March 9, 2006 > http://r.smartbrief.com/resp/dgjwfDtutbtHdlcqeZ > TODAY'S HEADLINES > NEWS OF T...
0 comments posted 20yrs
posted by nospam.kd1s
0 comments posted 20yrs posted by nospam.kd1s

Re: 25 Jz Power

> I know the Great Northern Railroad used electric locomotives through > mountain passes in Washington State because el...
0 comments posted 20yrs
posted by jstewart
0 comments posted 20yrs posted by jstewart

Re: 25 Hz Power

> Hi Wes ... > Sorry for the off-topic question but could you detail some of the > advantages you mentioned? > I know t...
0 comments posted 20yrs
posted by e.tappert.spamnot
0 comments posted 20yrs posted by e.tappert.spamnot

SS7/Intelligent Networks

Hi All, 1. Can anybody please tell me some thing about Hunt Group and Hunt lines in intelligent networks? Are these two...
0 comments posted 20yrs
posted by ncusa27560
0 comments posted 20yrs posted by ncusa27560

Internet and Civil Liberties?

There's been a lot of press lately about dangerous people using the Internet to prey on others. However, technical weak...
0 comments posted 20yrs
posted by hancock4
0 comments posted 20yrs posted by hancock4

Telecom Update #520, March 10, 2006

************************************************************ TELECOM UPDATE *******************************************...
0 comments posted 20yrs
posted by jriddell
0 comments posted 20yrs posted by jriddell

Re: 25 Hz power

Hi Wes ... Sorry for the off-topic question but could you detail some of the advantages you mentioned? I know the Great...
0 comments posted 20yrs
posted by alg
0 comments posted 20yrs posted by alg