[AMRadio] Knob needed

[Robert Sauvan]

Hi all,
I just acquired a Hallicrafters HT-30 transmitter and am in need of the
"carrier injection" knob.I dont know if there are a couple of other
Hallicrafters units that might have the same style knob or not. It has a
small flange around the perimeter of it and differs from the other knobs on
the rig. Or,any ideas as to where anyone makes replacements?

Thanks-Bob-W0YBS