GB217230A - Improvements in and relating to electric discharge devices such as thermionic tubes and the like - Google Patents
Improvements in and relating to electric discharge devices such as thermionic tubes and the likeInfo
- Publication number
- GB217230A GB217230A GB13791/24A GB1379124A GB217230A GB 217230 A GB217230 A GB 217230A GB 13791/24 A GB13791/24 A GB 13791/24A GB 1379124 A GB1379124 A GB 1379124A GB 217230 A GB217230 A GB 217230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- grid
- anode
- resistance
- thermionic
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B7/00—Generation of oscillations using active element having a negative resistance between two of its electrodes
- H03B7/02—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance
- H03B7/10—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance active element being gas-discharge or arc-discharge tube
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
217,230. Huth Ges., Dr. E. F. June 5, 1923, [Convention date]. Thermionic value circuits.-A sudden drop of a discontinuous character is effected in the internal resistance of an electric discharge device, operating by gas ionization or by thermionic or electric discharge, which drop remains stationary by first applying a high voltage to the auxiliary electrode and then removing it. The voltage is positive with respect to the cathode and may be applied by bridging over a portion of the discharge path by a resistance, capacity or inductance or by a combination thereof. Fig. 6 shows a thermionic tube having a condenser c and resistance r bridging the anode a and grid g arranged to generate oscillations in a circuit C, L. R. The variation of the internal resistance R is shovn in Fig. 5 relatively to the anode voltage Va, the dotted curve showing normal operation while the full curve shows the effect of the break-down of the resistance due to the application of the voltage to the auxiliary electrode. In modifications the variation of the internal resistance is obtained by applying temporarily a voltage between the grid and cathode, or a voltage between the grid and anode, or in a four electrode valve by applying one voltage between the anode and one grid and a second voltage between the cathode and the second grid, or bv magnetic control for at least a portion of the discharge path.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE217230X | 1923-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB217230A true GB217230A (en) | 1925-12-07 |
Family
ID=5830638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13791/24A Expired GB217230A (en) | 1923-06-05 | 1924-06-05 | Improvements in and relating to electric discharge devices such as thermionic tubes and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB217230A (en) |
-
1924
- 1924-06-05 GB GB13791/24A patent/GB217230A/en not_active Expired
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