Expensive as a spare part from the manufacturer if they are available but both Amazon and ebay list a wide variety of charger/adaptors, as do many other sites.

It is sometimes better and more convenient to buy a universal type with a variable voltage output and a variety of connectors. The 1650 ma rating will be the minimum and there is no reason why you shouldn't buy a higher rated type, say 2 amps or 2.5 amps.

The output voltage is another small problem - as it is a charger it is best to choose an unregulated type.

In electronics, don't believe, be sure. When it does not say AC, see what is next to it. The ~ sign means AC. The = sign means DC. I know lots of speaker systems use AC, but check the sign.

output = 12Vdc 0.5A (500mA)

The Creative SBS 370 Works on 11.5V AC (IT IS NOT DC) 1600mA (Means 1.6 Ampere) and 18.4VA. So, the Power Adaptor which you connect to the power socket behind the woofer is an AC ADAPTOR and NOT A DC ACAPTOR.

My Thor X 10 million candlepower spotlight takes a standard 12 volt, 1500 mA, center positive AC adaptor. You should be able to find one with an appropriate tip at any Radio Shack store, but you may find a cheaper universal adaptor at a Walmart or even at a "Dollar Plus" kind of store. An adaptor with a lower mA rating will take longer to charge your light, but it should still work (down to about 750-800 mA, I'm guessing).

Double-check the charging port of your Thor light to see whether there's any information about the input voltage requirements. On mine, the light itself has the charging port labeled for 12v, though I was reading the more detailed specifications off the adaptor itself. I can't recall whether the 2.5 million candlepower light also uses 12 volts of power (I think it does), or whether it takes 6 volts (a single battery vs. two batteries wired in series).

at most electrical stores you can buy a universal power adaptors with a selection of socents to fit most connections. and which has a selector on it for various voltages settings.
take one of the little connectors and see which one fits. then checking the polarity on your device set the polarity the same when plugging the connector into the power supply cable. adjust voltage as needed.

Warning: when connecting a variable power adaptor alway connect on the lowest voltage setting and work up as too high voltage can distroy your appliance.

Go to nearest electronic store get a universal adaptor comes with different settings and diff plugs. Or find the manufac web page and other dealers universal adap cheaper too but has to be 500 ma or higher depending on what is it for.

THE ANSWER TO MY QUESTION WAS FOUND OUT BY MYSELF BY VISITING A REPAIR / SERVICE DEPARTMENT AND MAKING ENQUIRIES CONCERNING THE DC OUTPUT OF THE AC ADAPTER ASSOCIATED WITH THE WESTERN DIGITAL, MY BOOK 250GB USB. tHE VOLTAGES ARE THESE. : - AC INPUT = 100 - 240 VOLTS 50/60 HZ
DC OUTPUT = 12 VOLTS ( REGULATED ) 2 - 0 A
CENTER PIN OF 12 VOLT DC INPUT PLUG IS " POSITIVE "

THANK YOU FOR THE SPACE TO ASK MY QUESTION.

I have one of these sitting in my attic dead. The power cord that is sitting with it has a DC19V 200mA output. Not 100% sure that is the right one but why else would it be there? :-)

here is the info you need...

Input Power 100~240V, 50~60Hz
9V DC,1A Max
Hope this helps...