Abstract: A self-converging adjustable yoke assembly comprises a lightweight plastic liner, sandwiched between saddle type horizontal coils and toroidal type vertical coils, with an attached rear for clamping the assembly on the neck of a picture tube. The periphery of the liner has three symmetrically mounted adjustment means each comprising a support base cemented to the yoke liner and to the horizontal windings, an adjustment screw having a hexagonal ball head and a locking cap. The adjustment screws engage the funnel of the picture tube for adjusting yoke tilt about the tube axis. The locking caps releasably secure the adjustment screws in position.

Abstract: A potentiometer assembly for providing DC voltages for tuning the UHF channels of a varactor diode television tuner comprises a housing divided into a plurality of elongated compartments, each having a resistive element associated therewith. Each compartment is configured for slidably maintaining a replaceable contact-carrying carriage member disposed for engaging one of the resistive elements. A threaded shaft is removably associated with and longitudinally disposed within each of the compartments and is operable for driving a carriage member within its compartment to displace its associated contact member along the corresponding resistive element.