If you grew up with the 741 op amp 1, it was drilled into your head to balance resistances seen by the op amp inputs. Over time, with different circuit techniques and different IC processes, this may ...

A 6w resistor should handle that much load fine. Its not the load on the fan that matters, but the load on the resistor itself that matters.

Should I be concerened about screwing something up in a power supply by adding a resistor to the fan inside the power supply?<P>I'm trying to undervolt the fan a little.<P>(may be a double post.