GB1005225A - Electron gun and fabrication thereof - Google Patents
Electron gun and fabrication thereofInfo
- Publication number
- GB1005225A GB1005225A GB29032/62A GB2903262A GB1005225A GB 1005225 A GB1005225 A GB 1005225A GB 29032/62 A GB29032/62 A GB 29032/62A GB 2903262 A GB2903262 A GB 2903262A GB 1005225 A GB1005225 A GB 1005225A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- capacitance
- spacing
- electrode
- electron gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/485—Construction of the gun or of parts thereof
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Microwave Tubes (AREA)
Abstract
1,005,225. Measuring dimensions. RADIO CORPORATION OF AMERICA. July 27, 1962 [Aug. 16,1961],No.29032/62. Heading G1N. [Also in Division H1] In an electron gun, the precise spacing between the end wall 14 of a tubular cathode 10 and a control electrode 16 is obtained by fixing the cathode by a support 18 less than the required distance from the electrode 16 and then radially bulging the tubular wall at 28 to produce the required spacing. The bulging may be by a mandrel 42 operated by servo motor 76. To determine the correct spacing, the capacitance C x across A<SP>11</SP> A<SP>11</SP> between the cathode 10 and a further electrode 30 may be compared with a standard capacitance C s using the capacitance bridge 70, phase discriminator 72 and chopper amplifier 74 to control the motor 76.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US131867A US3156029A (en) | 1961-08-16 | 1961-08-16 | Electron gun and fabrication thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1005225A true GB1005225A (en) | 1965-09-22 |
Family
ID=22451356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29032/62A Expired GB1005225A (en) | 1961-08-16 | 1962-07-27 | Electron gun and fabrication thereof |
Country Status (5)
Country | Link |
---|---|
US (1) | US3156029A (en) |
BE (1) | BE620963A (en) |
DE (1) | DE1219133B (en) |
GB (1) | GB1005225A (en) |
NL (1) | NL282118A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4529009A (en) * | 1983-08-03 | 1985-07-16 | Plascoat U.K. Limited | Multiple core hose |
GB2197119A (en) * | 1986-08-21 | 1988-05-11 | Sony Corp | Electron guns and methods of assembly |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471265A (en) * | 1980-04-02 | 1984-09-11 | Telefonaktiebolaget L M Ericsson | Apparatus for counteracting the cathode current increase occurring during warming-up in a travelling-wave tube in response to variation in the grid-cathode distance |
KR910005832Y1 (en) * | 1989-07-13 | 1991-08-05 | 삼성전관 주식회사 | Cathode structure for electron gun |
JP2001185025A (en) * | 1999-12-27 | 2001-07-06 | Sony Corp | Electron gun and method of manufacturing the same, and method of machining metal plate |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2106451A (en) * | 1936-01-28 | 1938-01-25 | Firestone Steel Products Co | Apparatus for assembling spark plugs |
DE740384C (en) * | 1939-09-01 | 1943-10-19 | Telefunken Gmbh | Procedure for adjusting the distance between the opening of the control panel and the face of the cathode of a Braun tube |
US2411184A (en) * | 1942-07-02 | 1946-11-19 | Gen Electric | Fabrication of discharge devices |
US2443916A (en) * | 1947-06-27 | 1948-06-22 | Rca Corp | Cathode-grid assembly for cathode-ray tubes |
US2748463A (en) * | 1949-09-22 | 1956-06-05 | Mueller Co | Method of coupling pipes |
DE884530C (en) * | 1951-04-29 | 1953-07-27 | Telefunken Gmbh | Bracket for the cathode tube of indirectly heated high vacuum tubes, especially cathode ray tubes |
US2831238A (en) * | 1952-09-09 | 1958-04-22 | Rca Corp | Apparatus for automatically mounting spacer plates in electrode assemblies |
US2814090A (en) * | 1953-07-10 | 1957-11-26 | Sylvania Electric Prod | Cathode spreader for flat cathodes |
US2884684A (en) * | 1954-02-02 | 1959-05-05 | Rca Corp | Apparatus for automatically assembling electron tube parts to form an electrode cage |
US2951279A (en) * | 1958-04-10 | 1960-09-06 | Tung Sol Electric Inc | Method of controlling the cut-off voltage of a cathode ray tube |
US3026438A (en) * | 1958-06-05 | 1962-03-20 | Rca Corp | Grid-cathode assembly for cathode ray tubes |
US3073160A (en) * | 1958-09-09 | 1963-01-15 | Sun Oil Co | Capacity type level meter |
US3059466A (en) * | 1959-01-12 | 1962-10-23 | Urmenyi Laszlo | Thickness gauges |
US3030578A (en) * | 1959-07-02 | 1962-04-17 | Bell & Howell Co | Measuring device |
-
0
- BE BE620963D patent/BE620963A/xx unknown
- NL NL282118D patent/NL282118A/xx unknown
-
1961
- 1961-08-16 US US131867A patent/US3156029A/en not_active Expired - Lifetime
-
1962
- 1962-07-27 GB GB29032/62A patent/GB1005225A/en not_active Expired
- 1962-08-07 DE DER33292A patent/DE1219133B/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4529009A (en) * | 1983-08-03 | 1985-07-16 | Plascoat U.K. Limited | Multiple core hose |
GB2197119A (en) * | 1986-08-21 | 1988-05-11 | Sony Corp | Electron guns and methods of assembly |
GB2197119B (en) * | 1986-08-21 | 1990-07-04 | Sony Corp | Electron guns and methods of assembling electron guns |
Also Published As
Publication number | Publication date |
---|---|
NL282118A (en) | |
US3156029A (en) | 1964-11-10 |
DE1219133B (en) | 1966-06-16 |
BE620963A (en) |
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