Manufacturing method and apparatus for insulating member

A method of electrically insulating stem pins of a stem of a cathode ray tube, the method comprising:

• inserting said stem pins, respectively, through a first plurality of pin through-holes in an insulator, said insulator being formed from a deformable silicon compound;
• inserting an exhaust pipe of the cathode ray tube through a first exhaust pipe through-hole formed in said insulator for receiving said exhaust pipe;
• wherein, the first exhaust pipe through-hole of said insulator corresponding to said exhaust tip has a diameter less than a diameter of said exhaust tip.

A method of electrically insulating stem pins of a stem of a cathode ray tube, the method comprising forming an insulator from a deformable silicon compound,

• wherein said forming an insulator comprising forming a first plurality of pin through-holes in said insulator for receiving the stem pins of said stem of said cathode ray tube and forming a first exhaust pipe through-hole in said insulator for receiving an exhaust pipe of said cathode ray tube;
• wherein, the first exhaust pipe through-hole of said insulator corresponding to said exhaust tip if formed with a diameter less than a diameter of said exhaust tip.