GB257683A - Improvements in thermionic valves - Google Patents
Improvements in thermionic valvesInfo
- Publication number
- GB257683A GB257683A GB1500725A GB1500725A GB257683A GB 257683 A GB257683 A GB 257683A GB 1500725 A GB1500725 A GB 1500725A GB 1500725 A GB1500725 A GB 1500725A GB 257683 A GB257683 A GB 257683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- filament
- anode
- cathode
- supported
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/78—One or more circuit elements structurally associated with the tube
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
257,683. General Electric Co., Ltd., and Bartlett, A. C. June 9, 1925. Vacuum tubes. - In thermionic valves particularly for use as oscillation generators, an auxiliary condenser is 'inserted within the envelope and connected electrically between the grid and cathode virtually to short-circuit the grid and cathode at the frequency of, and so to reduce, the undesirable oscillations of very high frequency liable to occur especially when valves are connected in parallel. The condenser is as large as possible without interfering with the operation of the valve, the grid-filament capacity being made greater than the grid-anode and filament-anode capacities. The auxiliary condenser may comprise two concentric cylinders o, p supported by, and in electrical connection with, the grid frame f and a supporting wire q on one filament lead b. The grid g and the anode m are supported from opposite foottubes of the bulb and the filament hook d is sup- ,ported by insulation e from the frame f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1500725A GB257683A (en) | 1925-06-09 | 1925-06-09 | Improvements in thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1500725A GB257683A (en) | 1925-06-09 | 1925-06-09 | Improvements in thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB257683A true GB257683A (en) | 1926-09-09 |
Family
ID=10051415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1500725A Expired GB257683A (en) | 1925-06-09 | 1925-06-09 | Improvements in thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB257683A (en) |
-
1925
- 1925-06-09 GB GB1500725A patent/GB257683A/en not_active Expired
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