GB434199A - Improvements in or relating to cathode ray tube circuit arrangements - Google Patents
Improvements in or relating to cathode ray tube circuit arrangementsInfo
- Publication number
- GB434199A GB434199A GB6034/34A GB603434A GB434199A GB 434199 A GB434199 A GB 434199A GB 6034/34 A GB6034/34 A GB 6034/34A GB 603434 A GB603434 A GB 603434A GB 434199 A GB434199 A GB 434199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- cathode
- potentials
- tapping
- impedance
- 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
- 238000010079 rubber tapping Methods 0.000 abstract 3
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
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
- H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Details Of Television Scanning (AREA)
Abstract
434,199. Circuits for cathode ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and YOUNG, A. J., 61, Galveston Road, Putney, both in London. Feb. 23, 1934, No. 6034. [Class 40 (iii)] The intensity of a cathode-ray is modulated by modulating the anode voltage of the tube, and the forces deflecting the ray to scan a predetermined area are simultaneously varied in dependence on the modulating-potentials to compensate variation in the speed of scanning resulting from modulation of the anode voltage. The signals, which also produce the anode modulation, are applied to the grid 3 of a pentode rectifier, and potentials from a tapping 9 in an anode impedance R1 are applied to the control grid 12 of a pentode amplifier to vary its mutual conductance. Potentials 10 from a time-base circuit are applied across an impedance R2 between the tapping 9 and the grid 12. The anode circuit of the amplifying-valve provides the force for deflecting the cathode ray. According to modifications ; the tapping 9 is on an impedance between the cathode 2 of the rectifier and the negative end H.T. of the source of anode potential ; the compensating device is combined with the time-base unit, Fig. 2 (not shown).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE408025D BE408025A (en) | 1934-02-23 | ||
| GB6034/34A GB434199A (en) | 1934-02-23 | 1934-02-23 | Improvements in or relating to cathode ray tube circuit arrangements |
| FR786030D FR786030A (en) | 1934-02-23 | 1935-02-22 | Improvements to cathode ray tube assemblies |
| US7736A US2179111A (en) | 1934-02-23 | 1935-02-23 | Cathode ray tube circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6034/34A GB434199A (en) | 1934-02-23 | 1934-02-23 | Improvements in or relating to cathode ray tube circuit arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB434199A true GB434199A (en) | 1935-08-23 |
Family
ID=9807218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6034/34A Expired GB434199A (en) | 1934-02-23 | 1934-02-23 | Improvements in or relating to cathode ray tube circuit arrangements |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2179111A (en) |
| BE (1) | BE408025A (en) |
| FR (1) | FR786030A (en) |
| GB (1) | GB434199A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2438717A (en) * | 1943-05-28 | 1948-03-30 | Du Mont Allen B Lab Inc | Beam switch for single trace observance |
| US2448771A (en) * | 1943-09-23 | 1948-09-07 | Du Mont Allen B Lab Inc | Cathode-ray oscillograph circuit |
| BE467388A (en) * | 1945-08-31 |
-
0
- BE BE408025D patent/BE408025A/xx unknown
-
1934
- 1934-02-23 GB GB6034/34A patent/GB434199A/en not_active Expired
-
1935
- 1935-02-22 FR FR786030D patent/FR786030A/en not_active Expired
- 1935-02-23 US US7736A patent/US2179111A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2179111A (en) | 1939-11-07 |
| BE408025A (en) | |
| FR786030A (en) | 1935-08-24 |
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