GB582744A - Thermionic impulse amplifier - Google Patents
Thermionic impulse amplifierInfo
- Publication number
- GB582744A GB582744A GB8929/44A GB892944A GB582744A GB 582744 A GB582744 A GB 582744A GB 8929/44 A GB8929/44 A GB 8929/44A GB 892944 A GB892944 A GB 892944A GB 582744 A GB582744 A GB 582744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pulses
- condenser
- resistance
- anode current
- 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
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
- H04N5/067—Arrangements or circuits at the transmitter end
- H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
Abstract
582,744. Pulse amplifying circuits ; television. FARNSWORTH TELEVISION & RADIO CORPORATION. May 10, 1944, No. 8929. Convention date, March 18, 1943. [Classes 40 (iii) and 40 (v)] In a pulse amplifier or synchronizing separator circuit, a first valve is fed over an impedance from a storage device in the output circuit of a second valve, a control voltage for the second valve being developed across the impedance, an amplified pulse or synchronizing signal appearing in the output of the second valve. Valve 3, fed with anode current from a large condenser 15 over resistance 16, is supplied with negative pulses on the grid which reduce the anode current and allow valve 8 to conduct, producing amplified pulses across the integrating circuit comprising resistance 12 and condenser 15. Condenser 15, charged by the pulses through valve 8, maintains the anode current of valve 3 during the period between pulses, the potential difference across resistance 16 biassing valve 8 beyond cut-off. Condensers 7 and 10 decouple the screens of the valves to their cathodes. The input may be a television signal, the video component being of insufficient amplitude to cause valve 8 to conduct, the synchronizing signal alone being effective to produce a signal in the output.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US582744XA | 1943-03-18 | 1943-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB582744A true GB582744A (en) | 1946-11-26 |
Family
ID=22015775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8929/44A Expired GB582744A (en) | 1943-03-18 | 1944-05-10 | Thermionic impulse amplifier |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB582744A (en) |
-
1944
- 1944-05-10 GB GB8929/44A patent/GB582744A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB563034A (en) | Improvements in or relating to electric signal transmission systems | |
US2313906A (en) | Electrical delay circuit | |
GB694835A (en) | Improvements in or relating to circuit-arrangements in which a signal is supplied toa control device | |
GB669455A (en) | Arrangements for reducing distortion in electric signals | |
GB595260A (en) | Television signal amplifier | |
GB663307A (en) | A cathode ray deflection system | |
US2295346A (en) | Television and like system | |
US2353876A (en) | Signal mixing amplifier | |
GB604763A (en) | Improvements in or relating to deflection circuits for cathode ray oscilloscopes or the like | |
US2589833A (en) | Pulse discriminator circuit | |
US2442304A (en) | Pulse keying circuit | |
GB740370A (en) | Noise cancellation circuits for synchronization pulse separator circuit in a television receiver | |
GB582744A (en) | Thermionic impulse amplifier | |
GB768508A (en) | Signal-separating circuit for a color-television receiver | |
US2315073A (en) | Electric circuits | |
US2790903A (en) | Signal-translating circuit | |
US2297612A (en) | Television and like system | |
GB781569A (en) | Improvements in and relating to amplitude selection circuits for signals comprising pulses | |
GB615987A (en) | Improvements in or relating to circuits for amplifying electrical oscillations | |
US2375551A (en) | Impulse amplifier | |
GB573508A (en) | Improvements in electrical circuits for the generation of pulses or oscillations | |
GB581018A (en) | Signal clipping system particularly for television | |
US2950344A (en) | Compensated noise cancelling circuit | |
GB542820A (en) | Improvements in or relating to television systems | |
US3138766A (en) | Volume limiter-expander |