GB592926A - Tuning indicator for radio receivers or the like - Google Patents
Tuning indicator for radio receivers or the likeInfo
- Publication number
- GB592926A GB592926A GB14959/45A GB1495945A GB592926A GB 592926 A GB592926 A GB 592926A GB 14959/45 A GB14959/45 A GB 14959/45A GB 1495945 A GB1495945 A GB 1495945A GB 592926 A GB592926 A GB 592926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- igniting
- electrode
- radio receivers
- june
- stem
- 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
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/02—Indicating arrangements
- H03J1/04—Indicating arrangements with optical indicating means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0067—Electrode assembly without control electrodes, e.g. including a screen
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
592,926. Glow discharge tubes. COLE, Ltd., E. K. June 13, 1945, No. 14959. Convention date, June 14, 1944. [Class 39 (i)] The cathode 3 of a glow discharge tube is of spiral shape with its apex towards the stem 2 of the tube, an igniting electrode 4 and control electrode 5 also being mounted in the stem. The igniting electrode is connected through a high resistance to a positive voltage higher than the igniting voltage. The control electrode is connected to a varying D.C. voltage, e.g. the screen grid or anode of a radio receiver to indicate tuning or to measuring bridges.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE592926X | 1944-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB592926A true GB592926A (en) | 1947-10-02 |
Family
ID=20312659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14959/45A Expired GB592926A (en) | 1944-06-14 | 1945-06-13 | Tuning indicator for radio receivers or the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB592926A (en) |
-
1945
- 1945-06-13 GB GB14959/45A patent/GB592926A/en not_active Expired
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