Easy Question - controller

[BrianG]

Digikey or similar supply houses are your best bet. You can also usually find eBay auctions for them. Basically, look for either "low ESR" (which stands for Equivalent Series Resistance), or the 105*C temperature rating. At the least, you want caps with the same capacitance and voltage rating. It is OK to go higher (but will get physically larger), but not lower. And even though only one is noticeably bad, the others could be bad, weakened, and/or on their way out as well so it might be a good idea to replace all of them at once.

Caps only have two leads so replacement is pretty straightforward. Just make sure you hook them the right way because they ARE polarized. The terminal labeled with a white stripe and/or (-) is the negative lead. Just cut the leads to the same size as the original, remove the original bad one, and solder in the new one in the same way.