bloke's 6/4 CC TUNING VALVE

[imperialbari]

That spring is in accordance with my ideas about having the vector force, where the real action is (the valve rotation) rather than at the trigger end of a push-rod assembly. You have a combo of two springs, which is even better. But when I suggested keeping the original test spring you told about it humming in resonance. An argument ringing with me. So now this question:

How do you avoid humming from this illustrated spring?

Klaus