We had an AR (Acoustic Research) tuner come through the shop recently. It needed a new filter capacitor in the power supply, and one of the rectifiers was leaky so I changed both out. After that is spec'ced out quite nicely on the bench and pulled in weaker stations in town with no worries- better than I was expecting. I wasn't expecting much to be honest; the AR amplifier was a terrible beast so it was a nice surprise to see that the tuner was much more competent.