GB601171A - Improvements in or relating to electronic amplifiers - Google Patents
Improvements in or relating to electronic amplifiersInfo
- Publication number
- GB601171A GB601171A GB1670045A GB1670045A GB601171A GB 601171 A GB601171 A GB 601171A GB 1670045 A GB1670045 A GB 1670045A GB 1670045 A GB1670045 A GB 1670045A GB 601171 A GB601171 A GB 601171A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- output
- grid
- signal
- relating
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/004—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general using discharge tubes
Landscapes
- Processing Of Color Television Signals (AREA)
Abstract
601,171. Valve amplifying and limiting circuits. PARKER, E., and BUCKINGHAM, J. June 30, 1945, No. 16700. [Classes 40 (v) and 40 (vi)] In a video amplifier and limiter, the signal is fed to the grid of valve V1 coupled to valve V2 only by the cathode resistor R1, the output signal appearing across the anode load R2. The gain may be varied by altering the setting of potentiometer R1 which controls the degree of negative feed-back. The output is linearly related to the input until the grid of valve V2 is driven beyond cut-off, the output then remaining constant with increase in input signal.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB601171A true GB601171A (en) | 1948-04-29 |
Family
ID=1732522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1670045A Expired GB601171A (en) | 1945-06-30 | Improvements in or relating to electronic amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB601171A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1278483B (en) * | 1962-12-20 | 1968-09-26 | Int Standard Electric Corp | Circuit arrangement for generating a constant range of contrast when broadcasting halftone-free black-and-white images on television |
| USD938354S1 (en) * | 2019-11-01 | 2021-12-14 | Shenzhen Hello Tech Energy Co., Ltd. | Portable power supply |
| USD944732S1 (en) * | 2019-08-08 | 2022-03-01 | Shenzhen Hello Tech Energy Co., Ltd. | Power supply |
-
1945
- 1945-06-30 GB GB1670045A patent/GB601171A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1278483B (en) * | 1962-12-20 | 1968-09-26 | Int Standard Electric Corp | Circuit arrangement for generating a constant range of contrast when broadcasting halftone-free black-and-white images on television |
| USD944732S1 (en) * | 2019-08-08 | 2022-03-01 | Shenzhen Hello Tech Energy Co., Ltd. | Power supply |
| USD938354S1 (en) * | 2019-11-01 | 2021-12-14 | Shenzhen Hello Tech Energy Co., Ltd. | Portable power supply |
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