nanog mailing list archives
Re: Why choose 120 volts?
From: Iljitsch van Beijnum <iljitsch () muada com>
Date: Thu, 28 May 2009 01:11:41 +0200
On 27 mei 2009, at 18:03, Peter Beckman wrote:
I haven't seen a PC power supply which is incapable of both 120v/ 60hz and240v/50hz in a very long time.
After this nice voltage discussion, what about hertz? Would it be more efficient for us Europeans to run our stuff at 60 Hz rather than 50? I hear that a 50 Hz grid loses 15% more due to inefficiencies than a 60 Hz grid. Not sure if that also applies over short distances, though.
And apparently you can run your Apple laptop's power supply on 80V DC... The switching power supply doesn't care as long as the voltage is low enough to not fry the half of the rectifier diodes in continuous use. (Try at your own risk, of course.)
Current thread:
- Re: Why choose 120 volts?, (continued)
- Re: Why choose 120 volts? Jared Mauch (May 26)
- RE: Why choose 120 volts? Dave Larter (May 26)
- Re: Why choose 120 volts? Wayne E. Bouchard (May 26)
- Re: Why choose 120 volts? Alex H. Ryu (May 26)
- Re: Why choose 120 volts? Owen DeLong (May 26)
- Re: Why choose 120 volts? Brian Raaen (May 27)
- Re: Why choose 120 volts? Dorn Hetzel (May 27)
- Re: Why choose 120 volts? Peter Dambier (May 27)
- Re: Why choose 120 volts? Michael Thomas (May 27)
- Re: Why choose 120 volts? Peter Beckman (May 27)
- Re: Why choose 120 volts? Iljitsch van Beijnum (May 27)
- Re: Why choose 120 volts? Alex H. Ryu (May 26)
- Re: Why choose 120 volts? Seth Mattinen (May 26)
- Re: Why choose 120 volts? Chuck Anderson (May 26)
- Re: Why choose 120 volts? Chris Adams (May 26)
- RE: Why choose 120 volts? Dave Larter (May 26)
- Re: Why choose 120 volts? Joe Greco (May 26)
- RE: Why choose 120 volts? Dave Larter (May 26)
- Re: Why choose 120 volts? Seth Mattinen (May 26)
- Re: Why choose 120 volts? david raistrick (May 26)
- Re: Why choose 120 volts? Joe Greco (May 26)