GB219705A - Improvements in electron discharge devices and circuit arrangements therefor - Google Patents
Improvements in electron discharge devices and circuit arrangements thereforInfo
- Publication number
- GB219705A GB219705A GB17901/24A GB1790124A GB219705A GB 219705 A GB219705 A GB 219705A GB 17901/24 A GB17901/24 A GB 17901/24A GB 1790124 A GB1790124 A GB 1790124A GB 219705 A GB219705 A GB 219705A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supplied
- resistance
- cathodes
- auxiliary
- electron discharge
- 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
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
- H04B1/1623—Supply circuits using tubes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/46—Reflex amplifiers
- H03F3/48—Reflex amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Microwave Amplifiers (AREA)
Abstract
219,705. British Thomson-Houston Co., Ltd., (Assignees of Hull, A. W.). July 27, 1923, [Convention date]. Addition to 205,058. Thermionic amplifiers and detectors.- Electron discharge devices comprising a rectifying portion and an amplifying portion of the type described in the parent Specification are connected in cascade to produce successive amplification and are oppositely connected to an alternating current source in order to produce full-wave rectification. As applied to a wireless receiver, the rectifying portions 4, 5 of the devices 2, 3 are connected to opposite terminals of the supply transformer 9, from which the heating currents for the auxiliary cathodes 2 are tapped off as shown. The anodes 7 are connected through a. common resistance 10 to an intermediate point on the transformer 9. The main cathodes 5 are also connected to a, common point across condensers 11 which serve in combination with the resistance 10 to smooth out fluctuation in the current supplied to the anodes 7. The auxiliary cathode 4 of the device 1 serves merely to heat the main cathode 5, for which purpose only a comparatively small alternating voltage is supplied from the source, as shown, thereby minimizing disturbances in the detecting circuits. The rectified plate voltage for the valve 1 is supplied by a tapping from the rectifying portion of the valve 2. Instead of the coupling transformers 13, 14 between the valves 2, 3, a choke coil in series with a resistance shunted by a condenser may be used. Fig. 3 shows a duplex tube for securing full-wave rectification. Two auxiliary cathodes 25 are surrounded by one cylindrical main cathode 26 and are separated by a partition 27. There is a single control or grid electrode 28 and one anode 29. the circuit connections to the supply transformer 9 being identical with those shown in Fig. 1.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US592158A US1699146A (en) | 1922-10-03 | 1922-10-03 | Electron-discharge device |
US654248A US1655270A (en) | 1922-10-03 | 1923-07-27 | Electron-discharge apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB219705A true GB219705A (en) | 1925-08-06 |
Family
ID=27081387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17901/24A Expired GB219705A (en) | 1922-10-03 | 1924-07-26 | Improvements in electron discharge devices and circuit arrangements therefor |
Country Status (3)
Country | Link |
---|---|
US (1) | US1655270A (en) |
FR (1) | FR29396E (en) |
GB (1) | GB219705A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2450009A (en) * | 1942-05-22 | 1948-09-28 | Standard Telephones Cables Ltd | Multiple stage thermionic valve |
US2671857A (en) * | 1944-02-11 | 1954-03-09 | John M Cage | Micro-microwave generator |
US2470536A (en) * | 1945-01-18 | 1949-05-17 | Albert G Thomas | Electronic switch |
US3195058A (en) * | 1963-06-05 | 1965-07-13 | Zygmunt N Hof | Electron tube with anode-heated cathode |
-
1923
- 1923-07-27 US US654248A patent/US1655270A/en not_active Expired - Lifetime
-
1924
- 1924-07-25 FR FR29396D patent/FR29396E/en not_active Expired
- 1924-07-26 GB GB17901/24A patent/GB219705A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1655270A (en) | 1928-01-03 |
FR29396E (en) | 1925-07-25 |
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