GB438961A - Improvements in ionic amplifier - Google Patents
Improvements in ionic amplifierInfo
- Publication number
- GB438961A GB438961A GB13545/34A GB1354534A GB438961A GB 438961 A GB438961 A GB 438961A GB 13545/34 A GB13545/34 A GB 13545/34A GB 1354534 A GB1354534 A GB 1354534A GB 438961 A GB438961 A GB 438961A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- anode
- control grid
- space
- 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
- 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
Landscapes
- Lasers (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
438,961. Thermionic valves. RUBEN, S., 265, Storer Avenue, New Rochelle, New York, U.S.A. May 4, 1934, No. 13545. Convention date, May 5, 1933. [Class 39 (i)] In an amplifier containing an ionizable medium, a control grid is arranged at a distance from the cathode not greater than the cathode fall space, a shielding electrode between the control grid and the anode is arranged close enough to the control grid to prevent ionization between the grids, and the anode is at a distance from the cathode greater than the cathode fall space. A controllable electron discharge is thus produced, the space charge being reduced by ionization, and a high output is obtained with a potential of 250 volts on the anode. The filling may be mercury to which may be added sodium or potassium, or a monatomic gas such as neon, argon or helium. As shown, an indirectly-heated cathode 2 is surrounded by a helical control grid 3, a helical shield grid 4, and a cylindrical anode, 5 which may be corrugated and tapered upwardly. The spacing of the turns of the control grid should be not greater than twice the cathode fall space length, so as to prevent the discharge through it of uncontrolled electron emission ; the shield grid may have the same spacing. Dimensions are given. The discharge is confined to the space between the cathode and the anode by mica plates 7. The envelope is coated. with carbon.
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 |
|---|---|
| GB438961A true GB438961A (en) | 1935-11-27 |
Family
ID=24686566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13545/34A Expired GB438961A (en) | 1933-05-05 | 1934-05-04 | Improvements in ionic amplifier |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1989461A (en) |
| BE (1) | BE403213A (en) |
| FR (1) | FR789133A (en) |
| GB (1) | GB438961A (en) |
| NL (1) | NL39614C (en) |
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/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR789133A (en) | 1935-10-23 |
| BE403213A (en) | 1934-06-30 |
| US1989461A (en) | 1935-01-29 |
| NL39614C (en) | 1936-12-15 |
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