GB414603A - Improvements in circuit arrangements for amplifying or producing high frequency oscillations - Google Patents
Improvements in circuit arrangements for amplifying or producing high frequency oscillationsInfo
- Publication number
- GB414603A GB414603A GB6609/34A GB660934A GB414603A GB 414603 A GB414603 A GB 414603A GB 6609/34 A GB6609/34 A GB 6609/34A GB 660934 A GB660934 A GB 660934A GB 414603 A GB414603 A GB 414603A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- amplifying
- high frequency
- producing high
- circuit arrangements
- 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
- H03B5/08—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
- Amplifiers (AREA)
Abstract
414,603. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 1, 1934, No. 6609. Convention date, March 11, 1933. [Class 40 (v).] In an oscillator or highfrequency amplifier in which the earthed point is not the filament of the valve, choke coils S1, S2, are provided to prevent high-frequency current from leaking through the filament-heating generator and earth. According to the invention these coils are located in the primary circuit of a step-down transformer T, in order that small coils made of fine wire may be usable. In a modification (Fig. 2, not shown) the coils S1, S2 are coupled to the inductance L.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE414603X | 1933-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB414603A true GB414603A (en) | 1934-08-09 |
Family
ID=6448371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6609/34A Expired GB414603A (en) | 1933-03-11 | 1934-03-01 | Improvements in circuit arrangements for amplifying or producing high frequency oscillations |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR769708A (en) |
| GB (1) | GB414603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2515213A (en) * | 1943-05-20 | 1950-07-18 | Rca Corp | Ultra high frequency communication system |
-
1934
- 1934-03-01 GB GB6609/34A patent/GB414603A/en not_active Expired
- 1934-03-05 FR FR769708D patent/FR769708A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2515213A (en) * | 1943-05-20 | 1950-07-18 | Rca Corp | Ultra high frequency communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR769708A (en) | 1934-08-31 |
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