electro-Physics: 17.3409 voltsZ

Eric Smith eric at brouhaha.com
Tue Dec 14 17:19:52 CST 2004


Tom Jennings wrote:
> I don't think APC makes one that size :-)

Actually they do.  APC makes UPSes up to the multiple megawatt range.

There's an IBM 1401 restoration project at the Computer History Museum.
They have a German 1401, so they need to convert the line frequency from
60 Hz to 50 Hz to run it.  I was surprised to learn that rotary
converters (i.e., motor-generators) have much higher MTBF that static
inverters (all-electronic).

Eric




More information about the cctalk mailing list