that can be bought at a local storeI do not want to order online, can I use a welding machine? 12 volts at 40 amps or more.
You can use a welding machine transformerYou are going to need a full wave bridge rectifierUse 50 Amp stud diodes for the bridge and isolate the diodes wellUse high current 200 volt electrolytic capacitors that have at 30 watt 16k ohm resistors to drain the caps and a good high current choke with a similar high current resistor in the positive DC railTake this smoothed output to a high current voltage regulator using something like 10 off BUX20 power transistorsDon't forget that the output from the smoothed DC is a lot higher than the you need, so you are going to have to dump a lot of volts, and that is HEAT, so get a BIG heat sinkI'm guessing that this is to run a linear amplifierGo with 50 volts, not 12, as this is more efficient in class AB1 or AB modeFailing that,, you could save a deal of hassle and buy a switch mode PSU.
wow first of all macs do not get slow after a while trust me my dad has a quad core i7 and 4 gig of ram on windows com but i have a dual core macbook pro with 4 gig of ram and it is faster the laptops have extremely good design u do not get viruses in macosx and just the user experience is just amazing i have had plenty of windows did not last a single year because of those pesky viruses windows fans say that you are not taking care of it carefully well guess what i want to enjoy my com[uter ithout taking care ofit its like making your windows run faster is a chore every day go figure
Nothing incredible about themJust people who don't know the first thing about computers buying them because they think expensive is betterFor over 30 years, PCs have blown Apple out of the water in the sales marketPeople are just foolish enough to fall for that Apple sales hype.
Apple sells a look and feel (the apple experience) that makes computing easy and straight-forwardThey want to be compensated for this effortIt's the same reason a BMW is more expensive than a ToyotaThey both get from point A to B, but the experience is very different.
