Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1996-10-03
1998-03-03
Pascal, Robert
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 393, H01J 2534
Patent
active
057239487
ABSTRACT:
A helix travelling-wave tube of the present invention includes a helix wave delay circuit having velocity tapers for improving a beam efficiency and reducing backward wave oscillation. The tube allows a small signal and a large signal synchronous voltage to coincide or be extremely close to each other and thereby allows its circuit to have a minimum length. The tube is therefore small size and light weight and involves a minimum of gain variation against voltage variation.
REFERENCES:
patent: 3324342 (1967-06-01), Eallonardo
patent: 4378512 (1983-03-01), Tsutaki
patent: 5162697 (1992-11-01), Davis et al.
Bettendorf Justin P.
NEC Corporation
Pascal Robert
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