General Telecommunications Forum

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Re: 208/240V, was: 25 Hz Powe

> "240V" is usually a "real" (more or > less...) 240V based on tapping two 120V legs against each other. If > they're (...
0 comments posted 20yrs
posted by bonomi
0 comments posted 20yrs posted by bonomi

Re: Keokuk Dam & 25Hz Power

> When I was young I was told that the dam at Keokuk, IA generated 25Hz > power. Since construction was completed in 19...
0 comments posted 20yrs
posted by bonomi
0 comments posted 20yrs posted by bonomi

Re Who Used 25 HZ Power in 50's

We understood users of 25 HZ power were electrochemicals in Niagara Falls, like Hooker and Carboruncum as well as steel...
0 comments posted 20yrs
posted by lilburn.ga.30047
0 comments posted 20yrs posted by lilburn.ga.30047

Re: Gas Refrigerator (was 25 Hz Power)

>>> [TELECOM Digest Editor's Note: A water cooler with a DC motor is >>> interesting; but did you ever see a _refrigera...
0 comments posted 20yrs
posted by nospam.kd1s
0 comments posted 20yrs posted by nospam.kd1s

Re: Gas Refrigerator (was 25 Hz Power)

> Someone mentioned Bell using jet engines for central office power > backup. I'm kind of surprised at this. The electr...
0 comments posted 20yrs
posted by Wesrock
0 comments posted 20yrs posted by Wesrock

Re: Gas Refrigerator (was 25 Hz Power)

> In the 1970s this all changed with the energy crisis. I believe the > domestic gas sources ran out and now gas had to...
0 comments posted 20yrs
posted by jmcharry
0 comments posted 20yrs posted by jmcharry

Re: Keokuk Dam & 25Hz Power

> Justa Lurker wrote: >> Not necessarily ... the resulting waveform would be quite fine >> ... imagine a 25 Hz motor on...
0 comments posted 20yrs
posted by jmcharry
0 comments posted 20yrs posted by jmcharry

Re: 208/240V, was: 25 Hz Power

> John McHarry wrote >> Some places the power company, at least in the past, got cheap and used >> two pole pigs to del...
0 comments posted 20yrs
posted by jmcharry
0 comments posted 20yrs posted by jmcharry

25 Hz railroad power--book recommendation

I see there was a lot of interest in power distribution. There's an excellent book that covers the history of electric...
0 comments posted 20yrs
posted by hancock4
0 comments posted 20yrs posted by hancock4

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 hancock4
0 comments posted 20yrs posted by hancock4

Re: Bell System Phone Label Code?

> I've come back to this thread in search of a new theory. I liked the > M = modular idea but I've saw a new ebay listi...
0 comments posted 20yrs
posted by hancock4
0 comments posted 20yrs posted by hancock4

Re: Gas Refrigerator (was 25 Hz Power)

>> [TELECOM Digest Editor's Note: A water cooler with a DC motor is >> interesting; but did you ever see a _refrigerato...
0 comments posted 20yrs
posted by hancock4
0 comments posted 20yrs posted by hancock4

Re: Gas Refrigerator (was 25 Hz Power)

> Being 9 or 10 years old at the time I was fascinated that a device > could be built that could make cold using only a...
0 comments posted 20yrs
posted by jsw
0 comments posted 20yrs posted by jsw

Tornado Damage in Kansas, Elsewhere

Tornadoes Rip Across Midwest, Killing 10 By JOHN O'CONNOR, Associated Press Writer Swarms of tornadoes killed at least...
0 comments posted 20yrs
posted by ap
0 comments posted 20yrs posted by ap