GB665550A - Improvements in and relating to electric discharge devices - Google Patents
Improvements in and relating to electric discharge devicesInfo
- Publication number
- GB665550A GB665550A GB14497/48A GB1449748A GB665550A GB 665550 A GB665550 A GB 665550A GB 14497/48 A GB14497/48 A GB 14497/48A GB 1449748 A GB1449748 A GB 1449748A GB 665550 A GB665550 A GB 665550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- grid
- anode
- frequency
- discharge device
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/78—One or more circuit elements structurally associated with the tube
- H01J19/80—Structurally associated resonator having distributed inductance and capacitance
-
- 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
- Lasers (AREA)
Abstract
665,550. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. May 28, 1948 [May 29,1947], No. 14497/48. Class 39 (i). [Also in Group XL (c)] A high-frequency oscillator comprises an electrical discharge device having a cathode, grid, and anode, and means connecting the cathode and grid having substantially zero impedance at the oscillation frequency, and a resonant circuit tuned to this frequency and connected between the anode and the cathode grid unit. As shown, the discharge device comprises a cathode 10, grid 11 and anode 12. The grirl and cathode are connected for highfrequency current through an internal condenser 22 which offers substantiatly zero impedance at these frequencies. The resonant circuit linking the anode to the grid and cathode unit is a cavity resonator formed by tubes 25 and 26. Adjustment of the anode voltage by a movable contact 37 on a potentiometer varies the amplitude of oscillation obtained. Besides the output connections for high-frequency energy from the resonator, the only connections to the discharge device are direct current to heat the filament and impart fixed voltages to the electrodes. In a modification the anode may be replaced by a combination consisting of a grid backed by a reflecting electrode 39.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US665550XA | 1947-05-29 | 1947-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB665550A true GB665550A (en) | 1952-01-23 |
Family
ID=22070238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14497/48A Expired GB665550A (en) | 1947-05-29 | 1948-05-28 | Improvements in and relating to electric discharge devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB665550A (en) |
-
1948
- 1948-05-28 GB GB14497/48A patent/GB665550A/en not_active Expired
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