GB490035A - Improvements in or relating to super-regenerative receivers - Google Patents
Improvements in or relating to super-regenerative receiversInfo
- Publication number
- GB490035A GB490035A GB29755/36A GB2975536A GB490035A GB 490035 A GB490035 A GB 490035A GB 29755/36 A GB29755/36 A GB 29755/36A GB 2975536 A GB2975536 A GB 2975536A GB 490035 A GB490035 A GB 490035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- quenching
- valve
- super
- oscillator
- grid
- 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
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D11/00—Super-regenerative demodulator circuits
- H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations
Abstract
490,035. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 2, 1936, No. 29755. Void. Convention date, Oct. 31, 1935. [Class 40 (v)] In a super-regenerative receiver, the quenching oscillator is arranged to give quenching negative impulses of relatively high amplitude and of short duration with respect to the intervals between the quenching impulses. The Figure shows a super-regenerative valve 5 with quenching oscillations applied to the grid from an oscillator 45 of frequency higher than the highest signal modulation frequency. The oscillator 45 is a pentode with a condenser 65 connected between the screen and suppressor grids and a variable resistance 67 in the suppressor grid circuit so that the frequency of the relaxation oscillations produced depends on the time constant of the combination 65, 67 and the duration of the negative impulses on the value of condenser 65, which may be reduced to a value approaching the internal capacity of the valve. The coupling to the grid of the valve 5 may include a variable resistance 87 to adjust the amplitude of the quenching oscillations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47665A US2076168A (en) | 1935-10-31 | 1935-10-31 | Quenching oscillator for superregenerative receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490035A true GB490035A (en) | 1938-08-04 |
Family
ID=21950258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29755/36A Expired GB490035A (en) | 1935-10-31 | 1936-11-02 | Improvements in or relating to super-regenerative receivers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2076168A (en) |
| GB (1) | GB490035A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2456029A (en) * | 1942-07-30 | 1948-12-14 | Rca Corp | Thermionic tube circuits |
| US2504636A (en) * | 1944-07-15 | 1950-04-18 | Philco Corp | Superregenerative receiver circuit |
| US2515282A (en) * | 1945-02-17 | 1950-07-18 | Everard M Williams | Portable interference transmitter |
| US2553219A (en) * | 1946-04-02 | 1951-05-15 | Philco Corp | Superregenerator |
| US2513428A (en) * | 1947-10-20 | 1950-07-04 | Philco Corp | Superregenerator |
| US2513968A (en) * | 1947-11-04 | 1950-07-04 | Philco Corp | Superregenerator |
| NL204063A (en) * | 1955-01-31 | |||
| US2863995A (en) * | 1955-01-31 | 1958-12-09 | Gen Electric | Superregenerative detector circuit using transistors |
| US6873838B2 (en) * | 2001-05-08 | 2005-03-29 | Robert Bosch Corporation | Superregenerative oscillator RF receiver with differential output |
-
1935
- 1935-10-31 US US47665A patent/US2076168A/en not_active Expired - Lifetime
-
1936
- 1936-11-02 GB GB29755/36A patent/GB490035A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2076168A (en) | 1937-04-06 |
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