Berkeley CSUA MOTD:Entry 39477
Berkeley CSUA MOTD
2017/10/23 [General] UID:1000 Activity:popular

2005/9/3-5 [Science/Electric, Consumer/PDA] UID:39477 Activity:moderate
9/3     I have AC adaptors for my cell phone and PDA that say the input
        should be 120VAC.  If I try to use them in Europe where the voltage
        is 220V, will I fry my PDA and cell?  Obviously, I'll have to use
        a plug adaptor to plug them in.
        \_ Yes, they will fry.  Get a transformer that goes 220V -> 110V.
           \- if you are in berkeley, you can get a little voltage and
              outlet adapater travel kit at the travel bookstore near
              black oak books. not the absolute cheepest but convenient
              enough. --psb
              \_ easy travel closed about a year ago.
        \_ Most electronics are dual-voltage these days.  Check the device
           specs.  -tom
           \_ second that.  Most of chargers nowadays take 100-240Volts.
              you *DO* have to worry about different type of plugs, though.
              *PERSONALLY* I have an usb data cable that also charges
              batteries.  I found having such cable is a lot more convenient
              then trying to get more than one set of plug converters.
                                        -- frequent traveler
                \_ URL on where to buy? I've been looking for this.
                   \_ what kind of phone / PDA do you have?
2017/10/23 [General] UID:1000 Activity:popular

You may also be interested in these entries...
2005/3/28-30 [Science/Electric] UID:36926 Activity:low
3/28    So I'm really confused about the DC to DC, car-to-laptop power adapter.
        How come most of them are "inverter" types, where you convert from
        DC to AC, and then AC to DC? Isn't that inefficient?
        \_ Using a resistor or transistor to do DC->DC also gives power loss.
           -not an EE.
        \_ It's easier to step up/down the voltage if the current is in the
2004/12/27-28 [Science/Electric] UID:35451 Activity:moderate
12/27   Anyone have experience with voltage regulators? Ie, it will
        correct under and over voltage back to 120v? I am trying to
        find one... Thanks.
        \_ Yes, they will do that. Is there anything more specific
           you wanted to knwo?
           \_ What particular ones have you used? How well does it work?
2004/10/16-18 [Science/Electric] UID:34170 Activity:high
10/16   Has anyone had AC power adapters that are slightly warm even when
        it's not connected to the device that uses it? Obviously, this means
        it must be consuming energy even when it's not transforming anything,
        but why should it be?
        \_ Every AC adapter generates some heat...some much more than others.
           Inside, you have active devices that are constantly working to
2003/11/6 [Science/Electric] UID:10965 Activity:nil
11/6    For AC adapters, if something says it needs 4.5V 300mA, is it all right
        to use something higher-rated, like 4.5V 500mA? Why or why not? Thanks.
        \_ The neutron flux can break down the gamma field.
           Get some ball bearings.
           \_ Good advice.  Also, don't cross the streams or there will be a
              total protonic reversal.
2002/10/18 [Science/Electric] UID:26238 Activity:high
10/17   I'm going to Thailand.  Does anyone know what kind of AC plug adapter
        I need to use over there?  (I know it's 220V over there.)  Thanks.
        \_ Can't you live without your vibrator for awhile?
        \_ would you trust us even if we told you?
        \_ To be safe you should protect your equipment with an adapter made by
           Trojenz corporation.
2002/8/21-22 [Science/Electric] UID:25639 Activity:moderate
8/20    Voltage answer: "Low voltage" is like 12-35v. Some people might call
        48v "low voltage". 110v or 120v, it's the same shit. It can range from
        105-130v. 220v is different though. --asked an electrician
        \_ I had always thought it was a reference to its rectifiable
2002/7/15-17 [Science/Electric] UID:25366 Activity:high
07/15   I need to get a replacement AC adaptor for a device which
        says 7.5VDC 1.2AMPS. Will a generic AC adaptor
        that supplies 7.5V, 1000mAh (like from Fry's) work??
        \_ You meant 1000mA instead of 1000mAh?
        \_ Maybe, but you're safer if you get one 7.5V, 1200mA, or > 1200
                                      I think you mean ~, not >  _/