GB456288A - Improvements in time bases for television receiving apparatus - Google Patents
Improvements in time bases for television receiving apparatusInfo
- Publication number
- GB456288A GB456288A GB1812635A GB1812635A GB456288A GB 456288 A GB456288 A GB 456288A GB 1812635 A GB1812635 A GB 1812635A GB 1812635 A GB1812635 A GB 1812635A GB 456288 A GB456288 A GB 456288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- energized
- cathode
- ray
- potentiometer
- 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
- H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass
- H03K6/02—Amplifying pulses
Abstract
456,288. Television. READER, E., Crofthouse, Collinge Fold, Rawtenstall, Lancashire, and GLASS, L., 7, Pall Mall, Manchester. June 25, 1935, No. 18126. [Classes 40 (iii) and 40 (v)] In a television receiver, the deflecting plates are energized in push-pull and the cathode-ray beam is extinguished during the fly-back period. Line and frame deflecting oscillations are generated by condensers C1, C2, charged over resistances R1, R12; R2, R11 and discharged through valves VI, V2 tripped by synchronizing impulses from a potentiometer R13. Valves V1, V2 are coupled to phase reversing valves V3, V4 and the deflecting plates PX1, PX2 ; PY1, PY2 are energized by leads from the anodes of the valves V2, V4 and V1, V3 respectively. Inductances L1, L2 in the anode circuits of valves V4, V3 provide back E.M.F.'s during return periods which are applied over potentiometer 20 and resistance R7 to the shield S1 of the cathode-ray tube to extinguish the ray. Resistances R3, R4 are stated to straighten the characteristics of valves V4, V3. The two generators are mutually shielded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1812635A GB456288A (en) | 1935-06-25 | 1935-06-25 | Improvements in time bases for television receiving apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1812635A GB456288A (en) | 1935-06-25 | 1935-06-25 | Improvements in time bases for television receiving apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB456288A true GB456288A (en) | 1936-11-06 |
Family
ID=10107098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1812635A Expired GB456288A (en) | 1935-06-25 | 1935-06-25 | Improvements in time bases for television receiving apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB456288A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2510670A (en) * | 1949-02-10 | 1950-06-06 | Garod Radio Corp | Scan magnitude control for cathode-ray tubes |
-
1935
- 1935-06-25 GB GB1812635A patent/GB456288A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2510670A (en) * | 1949-02-10 | 1950-06-06 | Garod Radio Corp | Scan magnitude control for cathode-ray tubes |
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