GB361351A - Improvements in thermionic valve circuits as applied to radiotelephonic systems and apparatus - Google Patents
Improvements in thermionic valve circuits as applied to radiotelephonic systems and apparatusInfo
- Publication number
- GB361351A GB361351A GB2449630A GB2449630A GB361351A GB 361351 A GB361351 A GB 361351A GB 2449630 A GB2449630 A GB 2449630A GB 2449630 A GB2449630 A GB 2449630A GB 361351 A GB361351 A GB 361351A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- circuit
- anode
- frequency
- reaction
- 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
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrotherapy Devices (AREA)
Abstract
361,351. Valve amplifying circuits. GRAHAM AMPLION, Ltd. and HODGSON, A. D'A., St. Andrew's Works, Slough, Buckinghamshire. Aug. 15,1930, No. 24496. [Class 40 (v).] In a wireless receiving circuit using a valve 10, Fig. 3, with at least five electrodes, one 14 of the electrodes, additional to the usual cathode 11, control grid 12, and anode 15, is connected to a feed-back circuit 24 to provide reaction with the input circuit 16, 17. The electrode 14 is a grid and is positively biased at 35 to serve as an auxiliary anode for highfrequency reaction, and a screening-grid 13 between it and the cathode is connected to the latter through a condenser 23 of low impedance to highfrequency currents. The screening-grid is given a positive potential by connecting it to a tapping 22 on the source of power supplied to the anode, and is coupled to anode circuit 25 to provide lowfrequency reaction. The grid 13 may be used for high-frequency reaction, the grid 14 for screening, and a condenser of low impedance to high-frequency currents connected between the anode and cathode, Fig. 2 (not shown). In a super-regenerative receiver. Fig. 4, the circuit of the grid 13 comprises a high-frequency reaction coil 24 and a circuit 29, 30 tuned to the supersonic frequency, the grid 14 is connected to the cathode, and the anode circuit comprises a supersonic-frequency reaction coil 31, and a filter 32, 33, 34 to byepass the supersonic frequency from the output 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2449630A GB361351A (en) | 1930-08-15 | 1930-08-15 | Improvements in thermionic valve circuits as applied to radiotelephonic systems and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2449630A GB361351A (en) | 1930-08-15 | 1930-08-15 | Improvements in thermionic valve circuits as applied to radiotelephonic systems and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB361351A true GB361351A (en) | 1931-11-16 |
Family
ID=10212566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2449630A Expired GB361351A (en) | 1930-08-15 | 1930-08-15 | Improvements in thermionic valve circuits as applied to radiotelephonic systems and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB361351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2582725A (en) * | 1943-05-03 | 1952-01-15 | Hartford Nat Bank & Trust Co | Frequency changing circuit arrangement |
-
1930
- 1930-08-15 GB GB2449630A patent/GB361351A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2582725A (en) * | 1943-05-03 | 1952-01-15 | Hartford Nat Bank & Trust Co | Frequency changing circuit arrangement |
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