DEFLECTION COIL SYSTEM FOR A PICTURE DISPLAY TUBE

摘要

The deflection coil system (7) comprises a synthetic resin support (9) which on its outside is surrounded by an annular ferromagnetic core (19) having toroidal deflection coils (21). On the rear portion (11) of the support (9) outwardly directed resilient members (23) which extend approximately perpendicularly to the axis (25) of the support are formed having on their forwardly directed side a face (27) which is inclined with respect to said axis. The faces (27) engage the rear side of the core (19) so that each member (23) on the core on the one hand exerts a radially outwardly directed force (29) centering the core with respect to the axis (25) and on the other hand an axially forwardly directed force (31) urging the core against an abutment (33) on the front of the support (9). Separate components for positioning the core (9) are hence not necessary. If desired the core (19) after assembly may be permanently connected to the support (9) by means of a few drops of adhesive (35).