Method of fabricating an electron tube

Details Method of fabricating an electron tube Method of fabricating an electron tube

1967-08-09

1978-06-13

Pendegrass, Verlin R.

316 24, H01J 918

Patent

active

040945634

ABSTRACT:
This invention relates to a method of fabricating and assembling the electrodes of an electron discharge device and includes in one illustrative embodiment the steps of processing within a first evacuated chamber an electrode such as a photocathode element, processing within a second evacuated chamber another portion(s) or electrode(s) of the device, assembling the first and second chambers together, evacuating the space therebetween, and assembling the photocathode element with another portion of the device. This assembling process is dependent upon providing an appropriate vacuum tight seal for both the first and second chambers which will withstand the processing temperatures and the vacuum established within the chambers, and which may be easily penetrated to bring the photocathode element and the portion of the electron discharge device together. In one illustrative embodiment, the other portion of the electron discharge device is placed upon a platform having a suitable cutting edge which is pressed upward through the seals associated with the second and first chambers to engage the photocathode element in the first chamber.

REFERENCES:
patent: 2154368 (1939-04-01), Tuuk et al.
patent: 3095251 (1963-06-01), Slark

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