GB452490A - Improvements in or relating to electron valves - Google Patents
Improvements in or relating to electron valvesInfo
- Publication number
- GB452490A GB452490A GB6415/35A GB641535A GB452490A GB 452490 A GB452490 A GB 452490A GB 6415/35 A GB6415/35 A GB 6415/35A GB 641535 A GB641535 A GB 641535A GB 452490 A GB452490 A GB 452490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resonator
- tube
- cathode
- subjectmatter
- open
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/68—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators
- H01J25/70—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators with resonator having distributed inductance with capacitance, e.g. Pintsch tube
-
- 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
- H03B9/00—Generation of oscillations using transit-time effects
- H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
- H03B9/02—Generation of oscillations using transit-time effects using discharge tubes using a retarding-field tube
Landscapes
- Microwave Tubes (AREA)
Abstract
452,490. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. Feb. 28, 1935, No. 6415. Convention date, March 1, 1934. [Class 39 (i)] A valve for ultra-short wave use comprises a resonator having a resonance space closed on all sides with the exception of a narrow gap and having a greater characteristic impedance in the vicinity of potential nodes than in that of potential loops. In one form, a hairpin cathode 4 is tensioned between two bars 5, 5<1>, surrounded by a metal tube 6 which has an open gridportion 7. The outer wall 8 of the resonator has two toroidal portions 9 and two portions 10, 11 forming short-circuiting condensers with the tube 6. The upper end of the tube 6 forms a quarter-wave aerial 12, the counterbalance 13 of which is a continuation of the tube 11. A control-grid may be arranged around the cathode so as to form with it a second resonator which may be excited by an external input or coupled reactively to the first resonator. The cathode may comprise a filament and an exciter anode. The tube may operate in a Barkhausen-Kurz 2 or a magnetron circuit. The surfaces bounding the resonance space may be highly polished and may be copper- or silver-plated. Specification 429,863 is referred to. The Specification as open to inspection under Sect. 91 comprises also the subjectmatter of Specifications 449,920, and 452,761. In addition it states that the outer and inner walls of the resonator may be sealed together in air - tight fashion so that the outer wall forms the envelope of the device. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4083D DE869649C (en) | 1934-03-01 | 1934-03-01 | Electron tubes for fanning, especially amplifying, generating or receiving ultra-high frequency, electromagnetic vibrations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB452490A true GB452490A (en) | 1936-08-24 |
Family
ID=40637097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6415/35A Expired GB452490A (en) | 1934-03-01 | 1935-02-28 | Improvements in or relating to electron valves |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE408150A (en) |
| DE (1) | DE869649C (en) |
| ES (1) | ES137325A1 (en) |
| FR (1) | FR789141A (en) |
| GB (1) | GB452490A (en) |
| NL (1) | NL55279C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755068C (en) * | 1935-10-25 | 1953-12-21 | Lorenz C Ag | Ultra-short wave transmitter which is connected to a radiator structure arranged in front of a reflection structure via a power line several ª ™ / 4 long |
| US2145735A (en) * | 1936-01-29 | 1939-01-31 | Gen Electric | Short wave radio transmitter |
| US2159521A (en) * | 1936-03-09 | 1939-05-23 | Farnsworth Television & Radio | Absorption oscillator |
| GB523712A (en) * | 1937-10-11 | 1940-07-22 | Univ Leland Stanford Junior | An improved electrical discharge system and method of operating the same |
| DE914634C (en) * | 1937-12-09 | 1954-07-05 | Pintsch Bamag Ag | Ultra-short wave arrangement for optional transmission and reception |
| DE740993C (en) * | 1938-11-19 | 1943-11-02 | Telefunken Gmbh | Feedback tube arrangement for ultrashort waves |
| DE764837C (en) * | 1939-09-10 | 1954-08-09 | Telefunken Gmbh | Short wave tubes with metal pistons |
| DE750380C (en) * | 1940-03-12 | 1945-01-06 | Vibration generator circuit for short or ultra-short waves | |
| US2463524A (en) * | 1945-03-10 | 1949-03-08 | Raytheon Mfg Co | Electron discharge device |
| NL202863A (en) * | 1954-12-16 | 1900-01-01 |
-
1934
- 1934-03-01 DE DEP4083D patent/DE869649C/en not_active Expired
-
1935
- 1935-02-16 FR FR789141D patent/FR789141A/en not_active Expired
- 1935-02-26 ES ES0137325A patent/ES137325A1/en not_active Expired
- 1935-02-28 BE BE408150D patent/BE408150A/xx unknown
- 1935-02-28 GB GB6415/35A patent/GB452490A/en not_active Expired
-
1937
- 1937-10-14 NL NL84556A patent/NL55279C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| FR789141A (en) | 1935-10-23 |
| NL55279C (en) | 1943-10-15 |
| ES137325A1 (en) | 1935-06-16 |
| BE408150A (en) | 1935-03-30 |
| DE869649C (en) | 1953-03-05 |
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