| 摘要 |
THE PRESENT INVENTION PROVIDES AN ELECTRON GUN CATHODE FOR CRTS INCLUDING A SLEEVE, ON WHICH A CAP HAVING AN ELECTROMAGNETIC RADIATION MATTER APPLIED ON ITS UPPER FACE, IS FIXED. A SLEEVE SUPPORTER THAT SUPPORTS AND IS MERGED WITH THIS SLEEVE IS INSERTED ON THE HOLDER AND, THUS, SECURELY FIXED. ALSO, A NUMBER OF THROUGH HOLES ARE FORMED IN THE CIRCUMFERENCE OF THE HOLDER.
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