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AC adapters

post #1 of 5
2/13/08 at 7:57pm
Thread Starter 
My portable speakers accept 18v DC input. I have an AC adapter that puts out 24v. Is it safe to use this adapter with my portable speakers?

And where is a good place to buy travel AC adapters that will take both 110v and 220v inputs? I just need one to power small items like portable speakers, etc., but not my laptop.
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post #2 of 5
2/13/08 at 8:07pm
too much voltage will generate a lot of heat and will eventually fry something. aside from voltage though, you also need to take into consideration current requirements (measured in amperes).
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post #3 of 5
2/13/08 at 8:41pm
Quote:
Originally Posted by furball View Post
My portable speakers accept 18v DC input. I have an AC adapter that puts out 24v. Is it safe to use this adapter with my portable speakers?

And where is a good place to buy travel AC adapters that will take both 110v and 220v inputs? I just need one to power small items like portable speakers, etc., but not my laptop.
Depends on the regulator design of your portable speaker. but most likely not.

you can go to Fry's or Radioshack to buy an adaptor that go 110v and 220v.

You'll need to make sure you have the correct connectors. The connectors can purchased separately. There are some that comes with adjustable voltage and a set of connectors. I bought one from from Fry's with a connectors and adjustable voltage. I don't remember how much I paid but it's not expensive.
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post #4 of 5
2/13/08 at 9:21pm
Thread Starter 
Thanks guys for the help. Radioshack it is then.
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post #5 of 5
2/16/08 at 10:03pm
The shack rules!
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