GB477362A - Improvements in or relating to thermionic valve apparatus for use on very short waves - Google Patents
Improvements in or relating to thermionic valve apparatus for use on very short wavesInfo
- Publication number
- GB477362A GB477362A GB17838/36A GB1783836A GB477362A GB 477362 A GB477362 A GB 477362A GB 17838/36 A GB17838/36 A GB 17838/36A GB 1783836 A GB1783836 A GB 1783836A GB 477362 A GB477362 A GB 477362A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensers
- metal
- boxes
- coil
- 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
- 239000002184 metal Substances 0.000 abstract 5
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 101150013204 MPS2 gene Proteins 0.000 abstract 1
- 101100291452 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MMS1 gene Proteins 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 230000003472 neutralizing effect Effects 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
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
- H04B1/036—Cooling arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Particle Accelerators (AREA)
- Microwave Amplifiers (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Plasma Technology (AREA)
Abstract
477,362. Condensers ; resistances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., DAVIS, N. E., GREEN, E., and HALL, A. W. June 26, 1936, No. 17838. Addition to 434,821. [Class 37] [Also in Group XL] The construction details of the short-wave radio transmitter described in the parent Specification are modified in various respects. (1) The secondary coil 111a of the output coupling is of rectangular spiral form and of metal tubing, and is associated with two series condensers of cylindrical form as shown in plan in Fig. 3. The inner members 111b, 111c of the condensers are linked together by an insulating yoke 411 attached to a plate 511 which slides in guides 611 on the framework, so that the inner members may be jointly adjusted relatively to the outer cylinders 211b, 211c which are secured to the frame. The whole unit is adjustably carried on an earthed member 911. (2) The anode circuit coil of the push-pull pair of transmitting-valves is divided centrally and a pair of condensers, arranged as shown in part sectional elevation in Fig. 6, are interposed. Two coaxial hollow cylinders MT1, MT2 spaced a small distance apart are surrounded by a mica dielectric LM which is held by a metal clamp MBC forming the common central member of the two condensers. The outer end of each cylinder is fixed to or formed integrally with a quadrant member MM2 each of which cooperated with a clamping-band MMC1 and screw MMS1 to receive the vertical ends of the divided anode coil. (3) The valves V1, V2, Fig. 9, are mounted on the outer sides of two metal cooling-boxes CB, CB2 by short fluidflow metal pipes FMP. Between the boxes CB1, CB2 is slidably mounted a metal structure BXC which thus forms the anode tuning- condenser. The neutralizing condensers are formed by electrodes EX adjustable in relation to the boxes CB1, CB2. (4) Losses are introduced in the input circuit, by shunting the primary coil of the input coupling by a bank of series-connected resistance units. Each unit comprises a hollow cylinder, and the units are arranged in a ring with their axes parallel, and are cooled by blowing air through them.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7696/34A GB434821A (en) | 1936-06-26 | 1934-03-10 | Improvements in or relating to thermionic valve apparatus for use on very short wave lengths |
| GB212815X | 1936-06-26 | ||
| CH185298T | 1937-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB477362A true GB477362A (en) | 1937-12-28 |
Family
ID=32073644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17838/36A Expired GB477362A (en) | 1934-03-10 | 1936-06-26 | Improvements in or relating to thermionic valve apparatus for use on very short waves |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2218309A (en) |
| CH (1) | CH212815A (en) |
| FR (2) | FR786681A (en) |
| GB (1) | GB477362A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468151A (en) * | 1943-04-19 | 1949-04-26 | Int Standard Electric Corp | Coupling arrangement for ultra high frequency circuits |
| US2438595A (en) * | 1944-05-03 | 1948-03-30 | Girdler Corp | High-frequency generator |
| US2548770A (en) * | 1945-05-30 | 1951-04-10 | John B Caraway | Protective arrangement for the neutralization circuits of vacuum tubes |
| US2682642A (en) * | 1949-07-30 | 1954-06-29 | Sprague Electric Co | Tunable artificial transmission line |
| US2775660A (en) * | 1953-12-02 | 1956-12-25 | Standard Electronics Corp | Filament lead-in and impedance matching structure for a grounded grid amplifier |
| DE1063227B (en) * | 1954-06-21 | 1959-08-13 | Deutsche Bundespost | Layout of a microwave amplifier consisting of several traveling wave tubes connected in cascade |
| US4647867A (en) * | 1985-12-16 | 1987-03-03 | Gte Laboratories Incorporated | High-frequency, high-gain, push-pull amplifier circuit |
-
0
- FR FR48575D patent/FR48575E/en not_active Expired
-
1935
- 1935-02-27 US US8470A patent/US2218309A/en not_active Expired - Lifetime
- 1935-03-05 FR FR786681D patent/FR786681A/en not_active Expired
-
1936
- 1936-06-26 GB GB17838/36A patent/GB477362A/en not_active Expired
-
1937
- 1937-06-10 CH CH212815D patent/CH212815A/en unknown
- 1937-06-26 US US150444A patent/US2223985A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2218309A (en) | 1940-10-15 |
| FR786681A (en) | 1935-09-07 |
| CH212815A (en) | 1940-12-15 |
| US2223985A (en) | 1940-12-03 |
| FR48575E (en) | 1938-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB477362A (en) | Improvements in or relating to thermionic valve apparatus for use on very short waves | |
| GB231820A (en) | New and improved means for eliminating magnetic coupling between coils | |
| US1432354A (en) | Radiosignaling apparatus | |
| GB542223A (en) | Improved inductance and capacity trimmer unit | |
| GB450286A (en) | Improvements relating to coils for use in high-frequency electrical apparatus | |
| Sah | Quasi transients in Class B audio-frequency push-pull amplifiers | |
| US1807994A (en) | Electrical apparatus | |
| GB312979A (en) | Improvements in loud speakers and the like | |
| GB389346A (en) | Improvements in or relating to feeder or conductor systems for use on very short waves | |
| GB297723A (en) | Radio frequency amplifier | |
| US1986805A (en) | Radio transmission apparatus | |
| GB292955A (en) | Device for the simultaneous tuning of circuits by the simultaneous variation of the coefficient of self-induction of the coils of the said circuits | |
| US1867153A (en) | Radioreceiver | |
| GB794443A (en) | Improvements in or relating to high frequency heating equipment | |
| US1567734A (en) | Radio transmission system | |
| US2174235A (en) | Transformer for band-pass selectors | |
| GB239263A (en) | Improvements in radio direction finders | |
| US1696263A (en) | Radio apparatus | |
| GB770762A (en) | Radio direction finder | |
| GB425468A (en) | High-frequency coil with adjustable inductance value | |
| GB468364A (en) | Improvements in and relating to high frequency iron core transformers | |
| GB366273A (en) | Improvements in or relating to a method and apparatus for wireless tuning circuits | |
| GB207825A (en) | Improvements in variometers | |
| GB467637A (en) | Improvements in coupling means for permeability tuned circuits for wireless reception | |
| GB776305A (en) | Improvements in or relating to intermediate frequency transformers |