GB440333A - Improvements in or relating to thermionic valve amplifiers - Google Patents
Improvements in or relating to thermionic valve amplifiersInfo
- Publication number
- GB440333A GB440333A GB1587634A GB1587634A GB440333A GB 440333 A GB440333 A GB 440333A GB 1587634 A GB1587634 A GB 1587634A GB 1587634 A GB1587634 A GB 1587634A GB 440333 A GB440333 A GB 440333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impedance
- london
- tuned circuit
- cathode
- working frequency
- 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
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000002420 orchard Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
440,333. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, RUST, N. M., 109, London Road, and MURPHY, F. M.'G., Orchard Lodge, London Road, Chelmsford. May 28, 1934, No. 15876. [Class 40 (v)] In a tuned highfrequency amplifier the grid is tapped down on the capacitative branch of the input circuit so that the impedance between the control grid and cathode is small relative to the reactance of the capacitative impedance in series therewith. The impedance between the control grid and the cathode may be, as shown, a condenser 1C1, or a series tuned circuit resonant below the working frequency, or a parallel tuned circuit resonant above the working frequency. The single tuned circuit may be replaced by a tunable band pass filter, Fig. 5 (not shown), and a number of amplifiers in cascade and with gangcontrolled tuning may be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1587634A GB440333A (en) | 1934-05-28 | 1934-05-28 | Improvements in or relating to thermionic valve amplifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1587634A GB440333A (en) | 1934-05-28 | 1934-05-28 | Improvements in or relating to thermionic valve amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB440333A true GB440333A (en) | 1935-12-30 |
Family
ID=10067107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1587634A Expired GB440333A (en) | 1934-05-28 | 1934-05-28 | Improvements in or relating to thermionic valve amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB440333A (en) |
-
1934
- 1934-05-28 GB GB1587634A patent/GB440333A/en not_active Expired
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