Electron tube

H - Electricity – 01 – J

Patent

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Details

313/35.33

H01J 29/82 (2006.01)

Patent

CA 1225429

ABSTRACT: Present in an electron tube having a glass envelope portion (1) is an electrode system (3) which is slid in the envelope portion (1) and is centred with res- pect to the wall (7) of the envelope portion (1) by means of a number of pretensioned springs (6). The springs (6) extend from a supporting point B which is fixed with res- pect to the electrode system (3) over their effective spring length towards the wall (7) of the envelope por- tion (1) and press against the wall (7) while forming a contact point A. A stick-slip movement of the springs over the surface of the wall (7) during the sliding move- ment of the electrode system (3) is avoided in that the springs (6) each extend over their effective spring length according to a straight line between supporting point B and contact point A. The occurrence of glass damage to the wall (7) is minimized by this measure.

462554

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