Electron tube cathode

Details Electron tube cathode Electron tube cathode

1977-10-25

1981-02-10

LaRoche, Eugene R.

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

252511, 313311, H01J 113

Patent

active

042504295

ABSTRACT:
Cathodes having a support for emissive material of foamed carbon are mechanically stable and resistant to detrition and have a homogeneous pore distribution.

REFERENCES:
patent: 3454816 (1969-07-01), Hoffmann et al.
patent: 3856574 (1974-12-01), Amagi et al.

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