GB450967A - Improvements in or relating to ultra short wave oscillation generators - Google Patents
Improvements in or relating to ultra short wave oscillation generatorsInfo
- Publication number
- GB450967A GB450967A GB21635A GB21635A GB450967A GB 450967 A GB450967 A GB 450967A GB 21635 A GB21635 A GB 21635A GB 21635 A GB21635 A GB 21635A GB 450967 A GB450967 A GB 450967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- series
- gridanode
- grids
- capacities
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
450,967. Valve generating circuits. PADDLE, L. H., 92, Lancaster Road, West Norwood, London. Jan. 3, 1935, No. 216. [Class 40 (v)] In order to reduce the effective interelectrode capacity of a valve-generating system, so as to produce shorter wavelengths, two or more valves are connected in series, and an inductive element is included at one point only in the series circuit formed by the gridanode paths of the valves. As shown in Fig. 9, the grids of the two valves V1, V2 are directly connected so that they work in phase, and the grid-anode capacities of both are effectively in series across the inductance L, which is coupled to a dipole aerial A. The cathode circuit and supply leads are isolated by high-frequency chokes HFC, the bias on both grids being regulated by a variable resistance R. In Fig. 10 the internal gridanode capacities of the four valves V1, V3, V4, V2 are similarly connected in series with the main tuning inductance L. Lecher-wires may be used either as intervalve couplings or for coupling the output to the aerial. Modulating frequencies may be impressed upon the common grid or anode circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21635A GB450967A (en) | 1935-01-03 | 1935-01-03 | Improvements in or relating to ultra short wave oscillation generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21635A GB450967A (en) | 1935-01-03 | 1935-01-03 | Improvements in or relating to ultra short wave oscillation generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB450967A true GB450967A (en) | 1936-07-28 |
Family
ID=9700465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21635A Expired GB450967A (en) | 1935-01-03 | 1935-01-03 | Improvements in or relating to ultra short wave oscillation generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB450967A (en) |
-
1935
- 1935-01-03 GB GB21635A patent/GB450967A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB497656A (en) | Improvements in or relating to electric oscillation generators | |
| US2110587A (en) | Phase modulation | |
| US1947003A (en) | Oscillation generation | |
| GB523353A (en) | Improvements in or relating to modulation systems | |
| GB450967A (en) | Improvements in or relating to ultra short wave oscillation generators | |
| GB490990A (en) | Arrangements for modulating high frequency oscillations | |
| GB584465A (en) | An improved apparatus for varying or modulating the frequency of crystal controlled circuits | |
| GB413973A (en) | Improvements in or relating to short wave thermionic valve transmitter arrangements | |
| US2120800A (en) | Transmitter | |
| US2248462A (en) | Modulation system | |
| GB564504A (en) | Improvements in and relating to electron discharge circuits | |
| GB373632A (en) | Improvements in or relating to thermionic oscillation generators | |
| US2870414A (en) | Suppressed carrier modulator | |
| US2073643A (en) | Ultrashort wave modulated carrier wave radio communication system | |
| US1829419A (en) | Frequency multiplication | |
| US2282347A (en) | Modulation system | |
| GB354075A (en) | Improvements in or relating to high frequency oscillation generators | |
| GB310043A (en) | Improvements in or relating to high frequency thermionic generators | |
| US2305911A (en) | High efficiency loss modulator | |
| US1525827A (en) | Production of alternating currents | |
| US2089271A (en) | Electrical coupling system | |
| US1710235A (en) | Radio transmitting circuit | |
| GB415464A (en) | Improvements in thermionic valve oscillation generators | |
| GB348941A (en) | Improvements in thermionic generators | |
| GB450057A (en) | Television radio transmitter |