tmobile sidekick hiptop voltage and polairity?
348223
The nominal voltage is 4.2V, and the battery supplies 1200mAh
1119321
first u check u power cord
593557
http://h18000.www1.hp.com/support/FILES/DESKTOPS/US/locate/29_110.html\nTry this
738167
Unless you are playing with low voltage, please find some other project. 120 Volt or 220 volt is very dangerous.\n\nAny way you will need all the components in same voltage I say get every thing in under 9 volts to make things easy, they must operate in 6 to 8 volt range so you will have voltage to spare. You may not be able to find them readily.\n\nThis is how it works.\n\nClapping sound is picked up by micro phone.\n\nThis produces a signal, that will close an open circuit on a lamp(or any thing that you need to turn on like a bell).\n\nTo make a package, like the one you buy in the store, it took quite a few years to perfect it, and they had experts working on it.. \n\n1.  9 volt battery. few to operate the systems.\n2.  red and black wire.\n3.  9 volt lamp.\n4.   6 volt Micro phone.\n5.   Sound activated switch, 6 volt \n6.   Tapes electrical.\n7.    cardboard to mount every thing.\n8.    cutting tool to make connections.\n9.    Solder iron and silver solder wire.\n10.   Different types of connectors.\n11.   Glue to put components on the board. \n\nEdmund-scientific.com may have a kit, it is on Internet.\n\nBuy the kit and assemble it.
138546
I'll try to return the favor of answering your q...\n\nI have a couple of decades of hardware experience, and your problem is one of the more difficult to pin down quickly. It's possible you have power supply problems (your electrical system). If the voltage dips "too far" (how far is too far depends on the electrical device) then your Compaq may shut down. Different computers, even different Compaqs, may shut down more, or less easily as the voltage coming from your wall outlet sags below 120 volts. You may, or may not, notice the lights dimming, but it may still be enough to trip the off circuit in your Compaq. If you don't have one yet, spend $40+ and get a battery backup (UPS). It'll help any system last longer, too. I like the APC UPSs.\n\nSecond possibility is that your Compaqs power supply (internal silver box) may be getting flakey. I haven't worked on a Compaq in a long time, but they used to have "custom" (proprietary) power supplies that required going back to them (Compaq) for a replacement (at a premium price). If it's a standard size/shape, then a new power supply is only around $50 to $60 and available at most local PC stores. Not a lot of expense, and easy to replace for even a novice. (Please uplug the system from the wall first, and try not to touch any electronic components inside the computer during your foray into the inner-world of your Compaq.)\n\nIf you still have trouble after confirming your electrical supply is good and your power supply isn't causing the shutdown, it is -slightly- possible you have a bad hard drive or mainboard. Replacing either of these is doable, but not for the non-tech. If you have a spare hard drive, you can just install it (replace your current hard drive) and fire the system up...let it sit...if it runs for a substantial amount of time longer than it usually does, then you -might- have found the problem. \n\nFinally, you may just have a heat problem. Try making sure all the vents (front, side, back) are clean and clear of obstruction. If you feel competent, take the case cover off and blow out the dust inside (but take the system OUTside first!). I've seen systems in relatively clean office environments build up a half-inch of grey fuzzy 'lint' all over the inside in less than a year. Even if this doesn't fix your problem, it'll probably make your system last longer by running cooler. I've seen hard drives that ran as low as 90 degrees F, and as high as 175 degrees F. The lower the better...within reason (less than 120F should be fine).\n\nHope this helps.
616704
pie   p power = i current x e voltage\n      e = i x r resistance
827050
Yupp... but unfortunately is a hardcopy on my desk. Perhaps you may straight to tell us what\n\n1. You are designing from HT to Transformer 11kV / 415V\n2. You are designinig from Transformer to LV ??\n3. What is the kVA of the transfomer?
1128191
put ap ost up or try faqs at www.gadgetdetective.com they should sort you out
1006061
The UPS has an internal battery that is disconnected for shipping.  Have you connected the battery inside?  Did you get the polarity right? If the UPS is plugged into the wall and turned on, it should power any connected devices while it charges the battery, assuming that the wall plug is live.  If this is a used UPS that you inherited, then the battery may need replacing.  The battery has a finite cycle life.  Check to see if the circuit breaker or fuse is reset and good.
360762
No, you can plug the adaptor in anytime.  The machine will switch over to AC power and start charing the battery at the same time. You may or may not see an icon in the task bar notification area.  If you do not see it and want to you do the following. If you you are running XP go to start/control panel (if you have in the XP default mode, it will say pick a category) If that is the case select Performance and maintenance/power options/advanced tab then you will see the check box to show the icon or not.  If THe control panel is in classic mode you will see all the icons. Just look for the icon labeled power option and do the same mentioned before. I hope this helps.
1127734
Dunno for sure but dont be too hasty on blaming the pute. Go to radioshack and invest in a cheap volt meter, put it on dc volts and measure the voltage at the output of the charger....the charger will tell you what it should be for voltage....sounds more like the charger took a dump to me....it may also be the battery.
387324
If its a 12v power supply you need then i think Radio shack should have a suiteable replacement  and they have power supplies with changeable polarity. Ebay has them but a lot of looking to find one .
1010219
the power suppoly has nothing to do with it u should be able to just puter it in and run it if you have the express options u can go to gateway and hit the support button and then put in ur serial number and it will tell u what you have on ur pc
609879
http://www.pocketpcmag.com/forum/topic.asp?TOPIC_ID=18151\nthis may help you\n(*You need to be a Yahoo! Plus User)
564411
This company is in Mumbai. The one they show is for 180-260V, but it says you can change the range. They don't give prices, however ...\n\nhttp://www.voltamp.com/Products/cvt-constant-voltage-transformers-ferroresoant.html
177692
No matter what is the voltage rating, isolation or insulation is tested by using "MEGGER".\nThe value should be atleast above 1 Mega ohm in any case
130984
get an uninterruptible power supply...