GB341870A - Improvements in or relating to the reception of wireless signals - Google Patents
Improvements in or relating to the reception of wireless signalsInfo
- Publication number
- GB341870A GB341870A GB31933/29A GB3193329A GB341870A GB 341870 A GB341870 A GB 341870A GB 31933/29 A GB31933/29 A GB 31933/29A GB 3193329 A GB3193329 A GB 3193329A GB 341870 A GB341870 A GB 341870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- valves
- frequency
- oct
- condenser
- 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
- 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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1018—Means associated with receiver for limiting or suppressing noise or interference noise filters connected between the power supply and the receiver
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Calculators And Similar Devices (AREA)
Abstract
341,870. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. Oct. 21, 1929, No. 31933. Convention date, Oct. 29, 1928. [Class 40 (v).] In a receiver having one or more high-frequency valves fed from a common filament supply, coupling between valves in which high-frequency currents occur is avoided by using reactances, such as a condenser 7 and high-frequency choke 8, connected respectively in parallel and in series with the filament leads between the valves. The choke 8 is connected in the filament lead not connected to the negative side of the anode battery 9. The Specification as open to inspection under Sect. 91 (3) (a) refers to the avoidance of coupling between valves with indirectly heated cathodes by connecting a condenser between the centre of a potentiometer connected across the filament and one or both of the filament leads. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL338107X | 1928-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB341870A true GB341870A (en) | 1931-01-21 |
Family
ID=19784608
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31933/29A Expired GB341870A (en) | 1928-10-29 | 1929-10-21 | Improvements in or relating to the reception of wireless signals |
| GB31138/30A Expired GB338107A (en) | 1928-10-29 | 1929-10-21 | Improvements in or relating to the reception of wireless signals |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31138/30A Expired GB338107A (en) | 1928-10-29 | 1929-10-21 | Improvements in or relating to the reception of wireless signals |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR683089A (en) |
| GB (2) | GB341870A (en) |
-
1929
- 1929-10-10 FR FR683089D patent/FR683089A/en not_active Expired
- 1929-10-21 GB GB31933/29A patent/GB341870A/en not_active Expired
- 1929-10-21 GB GB31138/30A patent/GB338107A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB338107A (en) | 1930-11-13 |
| FR683089A (en) | 1930-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB341870A (en) | Improvements in or relating to the reception of wireless signals | |
| GB397076A (en) | Improvements in and relating to thermionic amplifiers | |
| GB485737A (en) | Improvements in circuits for amplifying electrical oscillations | |
| GB617647A (en) | Improvements in or relating to frequency-changing circuits | |
| GB425880A (en) | Improvements in superheterodyne receivers for wireless reception | |
| GB401182A (en) | Improvements in or relating to thermionic valve arrangements | |
| GB438255A (en) | Improvements in arrangements for resonance indication in superheterodyne receiving sets | |
| GB300124A (en) | ||
| GB360679A (en) | Improvements in coupling arrangements comprising amplifying tubes | |
| GB474675A (en) | Improvements in or relating to thermionic amplifiers | |
| GB443191A (en) | Improvements in or relating to thermionic amplifiers | |
| GB385560A (en) | Improvements in radio receiving circuits | |
| GB460408A (en) | Improvements in or relating to superheterodyne radio receivers | |
| GB415573A (en) | Improvements in or relating to radio receiving installations with automatic volume control | |
| GB497206A (en) | Improvements in or relating to ultra-short wave receiving sets | |
| GB414927A (en) | Improvements relating to electron discharge amplifiers | |
| GB414051A (en) | Improvements in or relating to thermionic amplifiers | |
| GB418033A (en) | Improvements in or relating to wireless receiving apparatus | |
| GB385858A (en) | Improvements in electric filter circuits particularly for use with thermionic amplifiers | |
| GB381907A (en) | Improvements in or relating to intermediate-frequency thermionic amplifiers | |
| GB404225A (en) | Improvements in or relating to wireless receiving systems connecting aerials to distributing systems | |
| GB411416A (en) | Improvements in or relating to retroactive radio-receiving systems | |
| GB491063A (en) | Improvements in or relating to circuits comprising electric discharge tubes | |
| GB552526A (en) | Improvements in or relating to amplifying circuits for ultra-short waves | |
| GB552650A (en) | Improvements in or relating to neutralised high-frequency amplifiers |