GB523764A - Multi-valve high frequency oscillators - Google Patents
Multi-valve high frequency oscillatorsInfo
- Publication number
- GB523764A GB523764A GB132839A GB132839A GB523764A GB 523764 A GB523764 A GB 523764A GB 132839 A GB132839 A GB 132839A GB 132839 A GB132839 A GB 132839A GB 523764 A GB523764 A GB 523764A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- transmission line
- valves
- electrodes
- distance
- 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
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1817—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator
- H03B5/1835—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator the active element in the amplifier being a vacuum tube
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Electrotherapy Devices (AREA)
Abstract
523,764. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and FOSTER, J. Jan. 14, 1939, No. 1328. [Class 40 (v)] A number of valves are coupled together for the production of high frequency oscillations by connecting them to a transmission line, which forms the frequency determining circuit for each valve, at intervals equivalent to an integral number of electrical half-wavelengths, as shown. At the frequencies concerned a voltage node appears at a distance d from the valve electrodes which is small compared with a physical quarter wavelength. The valves are spaced apart along the line, the physical distance between the electrodes of adjacent valves being 2d + #/2 where n is zero or an integral number. The transmission line is extended from the electrodes of at least one of the outer valves a distance of d + #/4 + #/2 The supplies to anode and grid are brought in at voltage nodes through chokes, and the cathode leads are tuned. A type of valve which is preferably employed and enables a higher frequency to be obtained has the leads to the anode and grid brought out at both ends of the valve. Power is drawn off through a transmission line at right angles to the main transmission line and matched to it by adjusting the position of its point of connection. Specification 360,433 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB132839A GB523764A (en) | 1939-01-14 | 1939-01-14 | Multi-valve high frequency oscillators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB132839A GB523764A (en) | 1939-01-14 | 1939-01-14 | Multi-valve high frequency oscillators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB523764A true GB523764A (en) | 1940-07-22 |
Family
ID=9720085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB132839A Expired GB523764A (en) | 1939-01-14 | 1939-01-14 | Multi-valve high frequency oscillators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB523764A (en) |
-
1939
- 1939-01-14 GB GB132839A patent/GB523764A/en not_active Expired
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