I made my own lab pc power supply (atx) from a spare atx power supply according to one of the many Web Pages on the web and my 4 10 ohm 10 watt10% tolerance parallel connected resistors as a legitimate load to allow the power supply to function gets too hot (after about 1 to 2 minutes of being on the resistors are too hot to touch). I thought the cumulative wattage of this resistor "pack" would be sufficient to handle the power, especially after doing the calculations on the ohm's law calculator web page (one of them at the very least) and the parallel resistor calculator web. Is the 10 % tolerance unbalancing the resistor load (each resistor being different just enough to improperly handle the current/power?)? Does anyone have any resistor recommendations that I could get at radio shack or some other easy resistor arrangement? I don't want to take apart the main unit of the power supply because of the electrocution/shock danger. Thanks - I thought for sure these parallel resistors would be able to handle the power dissipation, later!
18 years ago