GB444886A - Improvements in or relating to electrical oscillation generators comprising electrondischarge devices - Google Patents
Improvements in or relating to electrical oscillation generators comprising electrondischarge devicesInfo
- Publication number
- GB444886A GB444886A GB25025/34A GB2502534A GB444886A GB 444886 A GB444886 A GB 444886A GB 25025/34 A GB25025/34 A GB 25025/34A GB 2502534 A GB2502534 A GB 2502534A GB 444886 A GB444886 A GB 444886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- reaction
- valve
- variable
- relating
- 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
- 230000010355 oscillation Effects 0.000 title abstract 2
- 238000010079 rubber tapping Methods 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
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
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
Landscapes
- Vehicle Body Suspensions (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
444,886. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and WRIGHT, G. M., Lordlands, Little Baddow, and RUST, N. M., 109, London Road, both in Chelmsford, Essex. Aug. 30, 1934, No. 25025. [Class 40 (v)] Relates to means for vary. ing the degree of reaction in a back-coupled valve with. out affecting the frequency of the oscillations generated The valve is of the variable mu type and reaction is con, trolled by altering the effective grid-bias, and therefore the amplification factor. As shown, the usual reaction-control condenser 3a is fixed instead of variable, and the desired effect is produced by moving the tapping point 11 along a grid-bias potentiometer 12. The tapping 11 is connected to the grid through a high-frequency choke 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25025/34A GB444886A (en) | 1934-08-30 | 1934-08-30 | Improvements in or relating to electrical oscillation generators comprising electrondischarge devices |
| US44046A US2082813A (en) | 1934-08-30 | 1935-10-08 | Oscillation generator comprising electron discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25025/34A GB444886A (en) | 1934-08-30 | 1934-08-30 | Improvements in or relating to electrical oscillation generators comprising electrondischarge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB444886A true GB444886A (en) | 1936-03-30 |
Family
ID=10220995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25025/34A Expired GB444886A (en) | 1934-08-30 | 1934-08-30 | Improvements in or relating to electrical oscillation generators comprising electrondischarge devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2082813A (en) |
| GB (1) | GB444886A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2520823A (en) * | 1946-04-10 | 1950-08-29 | Premier Crystal Lab Inc | Oscillator frequency control |
-
1934
- 1934-08-30 GB GB25025/34A patent/GB444886A/en not_active Expired
-
1935
- 1935-10-08 US US44046A patent/US2082813A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2082813A (en) | 1937-06-08 |
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