GB739360A - Grid bias arrangement for television receivers - Google Patents
Grid bias arrangement for television receiversInfo
- Publication number
- GB739360A GB739360A GB2747/54A GB274754A GB739360A GB 739360 A GB739360 A GB 739360A GB 2747/54 A GB2747/54 A GB 2747/54A GB 274754 A GB274754 A GB 274754A GB 739360 A GB739360 A GB 739360A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- valve
- grid bias
- television receivers
- bias arrangement
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
- H04B1/1623—Supply circuits using tubes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
739,360. Valve circuits for radio reception. STANDARD TELEPHONES & CABLES, Ltd. Jan. 29, 1954 [March 6, 1953], No. 2747/54. Class 40 (6). In a television receiver a negative grid bias voltage is derived from the line timebase. The timebase comprises a sawtooth generator VA1, VA1<SP>1</SP> of the cathode-coupled type driving a line output valve VA2. Grid current in the valve VA2 produces a negative potential across the grid leak R8 which is smoothed by means of resistor R10 and condenser C7 and which is either used directly as a fixed bias for one or more other stages of the receiver or alternatively is applied thereto via an adjustable potentiometer P.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL739360X | 1953-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB739360A true GB739360A (en) | 1955-10-26 |
Family
ID=19820474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2747/54A Expired GB739360A (en) | 1953-03-06 | 1954-01-29 | Grid bias arrangement for television receivers |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE526980A (en) |
| GB (1) | GB739360A (en) |
-
0
- BE BE526980D patent/BE526980A/xx unknown
-
1954
- 1954-01-29 GB GB2747/54A patent/GB739360A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE526980A (en) |
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