An actuator for a switch and/or indicator comprises a shaft rotatably passing through a wall and having a flexible nodal switching arm attached thereto, the shaft being operatively connected to a switch and/or indicator or the like. The wall through which the shaft passes is provided with a plurality of spaced nodes projecting therefrom into the path of movement of the nodal switching arm past which said nodal arm can move as a result of the bending of said arm, and is further provided with stop members engageable with said arm beyond said nodes. The construction is exceptionally well adapted for use in a multiband tuning device provided with a tuning shaft, the shaft of this assembly being rotatably mounted on the tuning shaft and being operatively connected both to a band-selection switch and to an indicator.