I have had some success with this device: the Gazunder Resonator. Of course this is the standard undamped unit. The designers leave it to the user as to how much damping to apply!
gazunder resonator.jpg
I have had some success with this device: the Gazunder Resonator. Of course this is the standard undamped unit. The designers leave it to the user as to how much damping to apply!
gazunder resonator.jpg