Get out the sandpaper, grinders and wire brushes! Physical removal of rust involves using something harder that the rust you want to remove and using it to wipe off that iron oxide. Wire brushing will take the longest time, sandpaper is better and if you use a power tool or air tool it's even faster.
The amperage rating isn't sufficient (as noted) and it isn't necessarily the same polarity either. You can possibly check if there is a polarity diagram on the adapters. In general, laptop power supplies are not interchangeable. So probably safe and unlikely to catch fire is about the best advice you'll get. posted by chairface at 4:47 PM on December 20, 2007. Thanks; I think I'll just wait and get a new replacement adapter tomorrow-just to be safe.
Computer Components: Computers are made of the following basic components: 1  Case with hardware inside: 2  Power Supply-The power supply comes with the case, but this component is mentioned separately since there are various types of power supplies. 3  The one you should get depends on the requirements of your system.omputers are made of the following basic components: 1  Case with hardware inside: 2  Power Supply-The power supply comes with the case, but this component is mentioned separately since there are various types of power supplies.