[mikethedruid]

Jake, this is where the manual is about a clear as mud. Read the sections on the selectivity control, the BFO, and the Q multiplier circuits. All I know is, for regular AM reception, on all bands, the receiver seems to work best with it clicked at the fully clockwise position, very strange, one would have expected the switch to be at the fully counter-clockwise position. I gave the link to the manual just above, read it for yourself. I suspect, with a lot more experience and playing with the set, I will understand and master it better, but it could be much better explained. I think it is a matter of one knob being asked to do too many things at once.