GB521762A - Improvements in electric frequency-changing circuits and multielectrode thermionic valves - Google Patents
Improvements in electric frequency-changing circuits and multielectrode thermionic valvesInfo
- Publication number
- GB521762A GB521762A GB3437438A GB3437438A GB521762A GB 521762 A GB521762 A GB 521762A GB 3437438 A GB3437438 A GB 3437438A GB 3437438 A GB3437438 A GB 3437438A GB 521762 A GB521762 A GB 521762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- electrode
- thermionic valves
- multielectrode
- wire
- 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
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
- H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes
Landscapes
- Lasers (AREA)
Abstract
521,762. Thermionic valves. M-O VALVE CO., Ltd., BALLANTINE, R. J., and JAMES, E. G. Nov. 25, 1938, No. 34374. [Class 39 (i)] A valve for use in a frequency changing circuit has surrounding the indirectly heated cathode 1 (i) an intensity-control grid 2 which receives the input signal (ii) a cylindrical slotted electrode 3 for concentrating the emission into beams (iii) deflecting electrodes 4 to which the local oscillatory circuit is connected and (iv) output electrodes 5, which are separated by an electrode 11<SP>1</SP> biassed negatively to the electrodes 5. Accelerating electrodes 6 may be used between the cylinder 3 and the deflectors. The electrode 11<SP>1</SP> may be of lattice form and may have a wire 11<SP>11</SP> extending in front of it, or may be only the wire 11<SP>11</SP>. The description contains dimensions and voltages for a specific example. The two anode halves on each side of the cathode are connected to a circuit resonant at the desired output frequency, the anode plates being biassed through a connection to the central point of the output inductance. Specifications 451,618 and 482,226 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3437438A GB521762A (en) | 1938-11-25 | 1938-11-25 | Improvements in electric frequency-changing circuits and multielectrode thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3437438A GB521762A (en) | 1938-11-25 | 1938-11-25 | Improvements in electric frequency-changing circuits and multielectrode thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB521762A true GB521762A (en) | 1940-05-30 |
Family
ID=10364850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3437438A Expired GB521762A (en) | 1938-11-25 | 1938-11-25 | Improvements in electric frequency-changing circuits and multielectrode thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB521762A (en) |
-
1938
- 1938-11-25 GB GB3437438A patent/GB521762A/en not_active Expired
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