Cathode heater assembly for electron discharge device

Details Cathode heater assembly for electron discharge device Cathode heater assembly for electron discharge device

1978-04-17

1979-04-24

Smith, Alfred E.

Electric lamp and discharge devices

Electrode and shield structures

Indirectly heated cathodes

313346R, H01J 124

Patent

active

041514408

ABSTRACT:
The titled assembly comprises a ceramic substrate having opposed surfaces bearing thereon discrete metallized patterns. One of the patterns serves as a base for an electron emissive material and the other serves as a heater.

REFERENCES:
patent: 3881124 (1975-04-01), Buescher et al.
patent: 3947715 (1976-03-01), Puhak
patent: 3958146 (1976-05-01), Buescher et al.
patent: 4009409 (1977-02-01), Buescher et al.

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