| 摘要 |
In a gas discharge tube 1 in accordance with the present invention, a side tube 22 is formed from a metal, the outer periphery of the stem 4 is provided with a joint portion 15b made of a metal, and the latter is joined to a metal-made joint portion 16 of the side tube 22 by welding, whereby the assembling is made easier by welding, while the gas discharge tube 1 itself can attain smaller dimensions. Also, since the side tube 22 is small and made of a metal, its handling improves greatly. Further, since side tube 22 is formed from a metal, the gas discharge tube 1 is encouraged to have a wider range of processed forms and attains a prospect for mass production. <IMAGE> |
