Here's what I have.
These appear to be darker than jr-tech's knobs, closer to black than brown, they have a gold ring on the outer knobs and they may be from a T-120.
I have the two pairs that should fit the first two shafts left to right, I don't have the third one that is a one piece knob but looks like a two piece, I also don't have that channel selector or escutcheon though I do have a similar channel selector that may also be from a 120.
If the fine tuning is the same as the other small knobs with a 1/8" shaft then I have one.
Is everyone confused yet?