FR789133A - Perfectionnements aux amplificateurs thermo-ioniques - Google Patents
Perfectionnements aux amplificateurs thermo-ioniquesInfo
- Publication number
 - FR789133A FR789133A FR789133DA FR789133A FR 789133 A FR789133 A FR 789133A FR 789133D A FR789133D A FR 789133DA FR 789133 A FR789133 A FR 789133A
 - Authority
 - FR
 - France
 - Prior art keywords
 - thermo
 - amplifiers
 - ionic
 - ionic amplifiers
 - 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
 - H01—ELECTRIC ELEMENTS
 - H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
 - H01J17/00—Gas-filled discharge tubes with solid cathode
 - H01J17/50—Thermionic-cathode tubes
 - H01J17/52—Thermionic-cathode tubes with one cathode and one anode
 - H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
 - H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
 
 
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US669503A US1989461A (en) | 1933-05-05 | 1933-05-05 | Ionic amplifier | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| FR789133A true FR789133A (fr) | 1935-10-23 | 
Family
ID=24686566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| FR789133D Expired FR789133A (fr) | 1933-05-05 | 1934-05-22 | Perfectionnements aux amplificateurs thermo-ioniques | 
Country Status (5)
| Country | Link | 
|---|---|
| US (1) | US1989461A (enEXAMPLES) | 
| BE (1) | BE403213A (enEXAMPLES) | 
| FR (1) | FR789133A (enEXAMPLES) | 
| GB (1) | GB438961A (enEXAMPLES) | 
| NL (1) | NL39614C (enEXAMPLES) | 
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US2620460A (en) * | 1941-04-10 | 1952-12-02 | Gen Motors Corp | Gas tube | 
| US2495908A (en) * | 1948-07-16 | 1950-01-31 | Sylvania Electric Prod | Thermionic discharge device | 
- 
        1933
        
- 1933-05-05 US US669503A patent/US1989461A/en not_active Expired - Lifetime
 
 - 
        1934
        
- 1934-05-04 GB GB13545/34A patent/GB438961A/en not_active Expired
 - 1934-05-05 NL NL69354A patent/NL39614C/xx active
 - 1934-05-17 BE BE403213D patent/BE403213A/xx unknown
 - 1934-05-22 FR FR789133D patent/FR789133A/fr not_active Expired
 
 
Also Published As
| Publication number | Publication date | 
|---|---|
| BE403213A (enEXAMPLES) | 1934-06-30 | 
| GB438961A (en) | 1935-11-27 | 
| NL39614C (enEXAMPLES) | 1936-12-15 | 
| US1989461A (en) | 1935-01-29 | 
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