Hello,
I picked up an HP 3611A off ebay. when testing the voltage control was within spec but found that the current would only adjust to about half of spec for both the .85A and 1.5A ranges. upon further investigation it looks like r19, which should be a 10k 5 turn pot, was replaced with a single turn pot, I did not check its value! So, I'll be ordering a new pot for this unit and that should clear that up, very strange.
my question though, I also see a capacitor with a raised vent, should I go ahead and replace it or should I replace the pot only and see if measurements are in spec under load?
Thanks!