Quote:
Originally posted by pHaestus
Standard deviation for the CPU sans stirrer is 0.085C according to Excel. That isn't bad; maybe it could become a little more stable with more shielding or removing that flux from the chip. I am loathe to mess with it too much though; don't feel like soldering it again and I am all out of spare CPUs at the moment.
With the stirrer on std dev is 0.488!
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The flux won't have an effect on short term stability. (At least until the CPU is running, and switching signals are leaking varying amounts of current to the diode pins.) It'll definitely be a long term drift problem though.
The biggest problem is the loop. Perhaps you could cut the red wire and splice it back together shorter, so that the red and white wire can lay closer together?