GB439032A - Improvements in or relating to thermionic valves and superheterodyne receivers and like apparatus incorporating the same - Google Patents
Improvements in or relating to thermionic valves and superheterodyne receivers and like apparatus incorporating the sameInfo
- Publication number
- GB439032A GB439032A GB9715/34A GB971534A GB439032A GB 439032 A GB439032 A GB 439032A GB 9715/34 A GB9715/34 A GB 9715/34A GB 971534 A GB971534 A GB 971534A GB 439032 A GB439032 A GB 439032A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- grid
- control grid
- circuit
- anode
- 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
- 230000010355 oscillation Effects 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 229940096118 ella Drugs 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- OOLLAFOLCSJHRE-ZHAKMVSLSA-N ulipristal acetate Chemical compound C1=CC(N(C)C)=CC=C1[C@@H]1C2=C3CCC(=O)C=C3CC[C@H]2[C@H](CC[C@]2(OC(C)=O)C(C)=O)[C@]2(C)C1 OOLLAFOLCSJHRE-ZHAKMVSLSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Microwave Amplifiers (AREA)
Abstract
439,032. Thermionic valves; circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Haines, D. G. ; 34, Ella Street, Bloomfield, New Jersey, U.S.A.) March 28, 1934, No. 9715. Convention date, March 28, 1933. [Classes 39 (i) and 40 (v)] A circuit arrangement including a valve having between the cathode and main anode a first control grid, an auxiliary anode and a second control grid comprises coupling means for the first control grid and auxiliary anode so that with the cathode they constitute a generator of oscillations, an input circuit for another set of oscillations connected between the second control grid and the cathode and an output circuit connected between the main anode and the cathode. The construction and disposition of the auxiliary anode and arrangement of the circuit are such that the current to the auxiliary anode is not substantially greater than that necessary to maintain the generator in oscillation. The second control grid may be of the multimu type. In one form, a signal input circuit 28 is connected to the second control grid 23 and a tuned output circuit 29 to the main anode 15. The cathode 16, first control grid 20 and auxiliary anode 21, which may consist of two backbones with or without a few turns of wire, are connected to a generating circuit 30. The grid 22, which serves as an accelerating grid, is connected to the screen grid 24. In a modification the grid 22 is directly connected to the cathode. The cathode 16 may be directly or indirectly heated. Valves constructed in accordance with Specification 439,082 may be employed. Specification 437,726 also is referred to. Reference has been directed by the Comptroller to Specification 408,256.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US439032XA | 1933-03-28 | 1933-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB439032A true GB439032A (en) | 1935-11-28 |
Family
ID=21929493
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9715/34A Expired GB439032A (en) | 1933-03-28 | 1934-03-28 | Improvements in or relating to thermionic valves and superheterodyne receivers and like apparatus incorporating the same |
| GB2149/35A Expired GB439082A (en) | 1933-03-28 | 1934-03-28 | Improvements in or relating to thermionic valves and superheterodyne receivers and like apparatus incorporating the same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2149/35A Expired GB439082A (en) | 1933-03-28 | 1934-03-28 | Improvements in or relating to thermionic valves and superheterodyne receivers and like apparatus incorporating the same |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE757376C (en) |
| GB (2) | GB439032A (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE403926A (en) * | 1927-05-21 | |||
| FR668535A (en) * | 1928-05-08 | 1929-11-04 | Etablissements Ducretet Soc D | Frequency changer device, in particular for radio signaling |
| FR669267A (en) * | 1929-02-07 | 1929-11-14 | Improvement in regulator assemblies applied to frequency changers and others | |
| FR689946A (en) * | 1929-04-27 | 1930-09-12 | Thermionic vale device for wireless telegraphy and its applications | |
| FR704534A (en) * | 1930-01-17 | 1931-05-21 | Thomson Houston Comp Francaise | Improvements to special frequency changing oscillating lamps |
-
1934
- 1934-03-01 DE DER90038D patent/DE757376C/en not_active Expired
- 1934-03-28 GB GB9715/34A patent/GB439032A/en not_active Expired
- 1934-03-28 GB GB2149/35A patent/GB439082A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB439082A (en) | 1935-11-28 |
| DE757376C (en) | 1953-04-16 |
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