GB687261A - Improvements relating to electric discharge devices - Google Patents
Improvements relating to electric discharge devicesInfo
- Publication number
- GB687261A GB687261A GB21844/46A GB2184446A GB687261A GB 687261 A GB687261 A GB 687261A GB 21844/46 A GB21844/46 A GB 21844/46A GB 2184446 A GB2184446 A GB 2184446A GB 687261 A GB687261 A GB 687261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- space charge
- charge control
- conductor
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/86—Hydrazides; Thio or imino analogues thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/14—Magic-eye or analogous tuning indicators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
- H03J3/14—Visual indication, e.g. magic eye
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US606830A US2513908A (en) | 1940-07-23 | 1945-07-24 | Electric discharge device of the indicator type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB687261A true GB687261A (en) | 1953-02-11 |
Family
ID=22084330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21844/46A Expired GB687261A (en) | 1945-07-24 | 1946-07-22 | Improvements relating to electric discharge devices |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE469150A (es) |
| FR (1) | FR931222A (es) |
| GB (1) | GB687261A (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976143C (de) * | 1952-01-31 | 1963-03-28 | Standard Elek K Lorenz Ag | Spannungsanzeigeroehre |
| IT500148A (es) * | 1952-02-08 | |||
| DE1061910B (de) * | 1952-03-20 | 1959-07-23 | Standard Elektrik Lorenz Ag | Spannungs- und Spannungsvergleichs-anzeigeroehre |
| DE933406C (de) * | 1952-06-27 | 1955-09-22 | Lorenz C Ag | Spannungsanzeigeroehre mit Anzeige- und Verstaerkersystem |
| DE1021093B (de) * | 1952-12-12 | 1957-12-19 | Siemens Ag | Abstimmanzeigerroehre |
| DE1084386B (de) * | 1956-01-05 | 1960-06-30 | Standard Elektrik Lorenz Ag | Spannungsanzeigeroehre |
-
1946
- 1946-07-22 GB GB21844/46A patent/GB687261A/en not_active Expired
- 1946-07-24 FR FR931222D patent/FR931222A/fr not_active Expired
- 1946-11-14 BE BE469150A patent/BE469150A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE469150A (es) | 1946-12-31 |
| FR931222A (fr) | 1948-02-17 |
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