FR892121A - Perfectionnements apportés aux tubes redresseurs à vide élevé comprenant une cathode à incandescence et convenant pour de hautes tensions
- Google Patents
Perfectionnements apportés aux tubes redresseurs à vide élevé comprenant une cathode à incandescence et convenant pour de hautes tensions
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CHF Mueller AG
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CHF Mueller AG
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H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
H01J7/186—Getter supports
FR892121D1943-03-111943-03-11Perfectionnements apportés aux tubes redresseurs à vide élevé comprenant une cathode à incandescence et convenant pour de hautes tensions
ExpiredFR892121A
(fr)