Biohazard
This would be the culprit.
The plastic gear, outer teeth, turns the entire tuning mechanism. Those teeth are fine and I have the rest of the tuning rig turning freely. The inner splines, which mate to the splines on the actual thumb wheel, are stripped. Plus, the plastic gear itself is cracked. I believe one fairly potent adhesive could get this unit back in action. A good lubrication of everything downstream of this knob will ease the load on the repaired gear and should make for smooth operation.
This would be the culprit.
The plastic gear, outer teeth, turns the entire tuning mechanism. Those teeth are fine and I have the rest of the tuning rig turning freely. The inner splines, which mate to the splines on the actual thumb wheel, are stripped. Plus, the plastic gear itself is cracked. I believe one fairly potent adhesive could get this unit back in action. A good lubrication of everything downstream of this knob will ease the load on the repaired gear and should make for smooth operation.
