GB695584A - Improvements in or relating to circuits for stabilizing cathode beams in alternativepositions - Google Patents
Improvements in or relating to circuits for stabilizing cathode beams in alternativepositionsInfo
- Publication number
- GB695584A GB695584A GB3193/51A GB319351A GB695584A GB 695584 A GB695584 A GB 695584A GB 3193/51 A GB3193/51 A GB 3193/51A GB 319351 A GB319351 A GB 319351A GB 695584 A GB695584 A GB 695584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- electrodes
- capacitor
- collecting
- point
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K29/00—Pulse counters comprising multi-stable elements, e.g. for ternary scale, for decimal scale; Analogous frequency dividers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
- H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/04—Distributors combined with modulators or demodulators
- H04J3/045—Distributors with CRT
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Radiation (AREA)
- Details Of Television Scanning (AREA)
- Electron Beam Exposure (AREA)
Abstract
695,584. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 9, 1951 [Feb. 14, 1950], No. 3193/51. Class 39(i) [Also in Groups XIX and XL(c)] The Figure shows a circuit in which a C.R. tube 1 comprises a cathode 2, control electrode 3, beam producing means 4, deflecting electrodes 5, 6 and collecting electrodes 7, 8, 12, 13. The electrode 7 has apertures 7<SP>1</SP> and collecting electrode 8 is connected to the deflection electrode 6 so that the electron beam may occupy any one of a number of stable positions. Negative pulses applied consecutively at point 16 cause the beam to move from a given stable position to the next one in a left-wise direction successively so that after six input pulses the beam will have been moved from its initial position to the extreme left-hand position in which it is incident on the left-hand edge of the left-hand end aperture 7<SP>1</SP> of collecting electrode 7. the secondary emissive electrode 12 and the adjacent further collecting electrode 13 are so biased that normally the potential of electrode 13 is greater than that of electrode 12. The seventh applied pulse at point 16 deflects the beam so that it strikes electrode 12 which emits secondary electrons which pass to electrode 13. Hence electrodes 12 and 13 become charged positively and negatively respectively, the negative pulse at electrode 13 being transmitted via capacitor 14 to deflecting electrode 6 so that the beam is deflected still further to the left. After a short time the potentials of electrodes 12 and 13 become substantially constant and capacitor C at point 16 tends to discharge thus the beam moves to the right until it leaves electrode 12 when electrode 13 rises rapidly in potential. This positive pulse is transmitted via capacitor 14 to electrode 6 to deflect the beam rapidly back to its initial right hand position, the negative pulse produced at electrode 12 is applied via capacitor 17 to the control electrode 3 to cut-off the beam during the fly-back period. The fly-back may be accelerated by connecting electrode 12 via a capacitor to the deflection electrode 5. In a modification the electrode 12 may be coupled to the beam producing means 4 instead of to control electrode 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL151656A NL82254C (en) | 1950-02-14 | 1950-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB695584A true GB695584A (en) | 1953-08-12 |
Family
ID=33028940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3193/51A Expired GB695584A (en) | 1950-02-14 | 1951-02-09 | Improvements in or relating to circuits for stabilizing cathode beams in alternativepositions |
Country Status (7)
Country | Link |
---|---|
US (1) | US2617074A (en) |
BE (1) | BE501196A (en) |
CH (1) | CH289184A (en) |
DE (1) | DE857248C (en) |
FR (1) | FR1039631A (en) |
GB (1) | GB695584A (en) |
NL (2) | NL151656B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE506342A (en) * | 1950-10-12 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1257971A (en) * | 1917-02-17 | 1918-03-05 | Joseph Bethenod | Generator of sustained electric oscillations. |
US2305617A (en) * | 1940-03-15 | 1942-12-22 | Rca Corp | Cathode ray tube and circuit |
US2477008A (en) * | 1945-08-01 | 1949-07-26 | Rosen Leo | Electrical apparatus |
US2463535A (en) * | 1946-03-22 | 1949-03-08 | Bell Telephone Labor Inc | Electron discharge device |
NL75979C (en) * | 1946-10-23 | |||
US2496633A (en) * | 1947-12-24 | 1950-02-07 | Bell Telephone Labor Inc | Multitarget cathode-ray device |
NL80421C (en) * | 1948-03-16 | |||
US2564908A (en) * | 1949-03-08 | 1951-08-21 | Nat Union Radio Corp | Voltage sampling and electron beam holding arrangement |
-
1950
- 1950-02-14 NL NL656507754A patent/NL151656B/en not_active IP Right Cessation
- 1950-02-14 NL NL151656A patent/NL82254C/xx active
- 1950-12-22 US US202346A patent/US2617074A/en not_active Expired - Lifetime
-
1951
- 1951-02-09 GB GB3193/51A patent/GB695584A/en not_active Expired
- 1951-02-11 DE DEN3491A patent/DE857248C/en not_active Expired
- 1951-02-12 FR FR1039631D patent/FR1039631A/en not_active Expired
- 1951-02-12 BE BE501196D patent/BE501196A/xx unknown
- 1951-02-12 CH CH289184D patent/CH289184A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE857248C (en) | 1952-11-27 |
BE501196A (en) | 1952-05-09 |
CH289184A (en) | 1953-02-28 |
US2617074A (en) | 1952-11-04 |
NL151656B (en) | 1955-10-15 |
NL82254C (en) | 1956-08-15 |
FR1039631A (en) | 1953-10-08 |
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