I spent a few hours digging through knobs at the ARCI swapfest today and found a few
There might well have been other good knobs, but the heat was really getting to me
I'm not sure these are the right inner knobs, but they match the channel knob and fit well.
It seems the 2nd knob from the right has a slightly larger shaft than the three to the left
I can probably enlarge one I picked up today which just leaves the fine tuning knob.
I also scored the faux dual knob for the power/volume control on the Sonora
I really don't need the Philco, GE or Motorola knobs on the right so let me know if you do.