My PL-660 arrived yesterday from Kaito defective. Everything seems to work except the VFO knob. It does nothing. I contacted Kaito and surprisingly they dont do business on the weekends. 2013, and they close their internet business on Saturdays and Sundays? Whatever, but now I have to wait for an authorization code before I can send it back (at my own expense). I hope they arent going to wait for the defected one to arrive before they ship me out a new one, thus having this transaction last 3 days shy of a month!