GB455298A - Improvements in or relating to valve circuits for receiving radio signals - Google Patents
Improvements in or relating to valve circuits for receiving radio signalsInfo
- Publication number
- GB455298A GB455298A GB1182035A GB1182035A GB455298A GB 455298 A GB455298 A GB 455298A GB 1182035 A GB1182035 A GB 1182035A GB 1182035 A GB1182035 A GB 1182035A GB 455298 A GB455298 A GB 455298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- grid
- quenching
- circuit
- pentode
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
455,298. Valve circuits for wireless reception. JOHNSTONE, D. M., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. April 17, 1935, No. 11820. [Class 40 (v)] The oscillatory circuit of a super-regenerative receiver is damped by a shunt-connected pentode valve to which the quenching voltage is applied. The valve may also generate the quenching oscillation, the grid being coupled to the screen-grid circuit, Fig. 1 (not shown). The control grid may be coupled to the anode, Fig. 2, and the quenching oscillations be applied to the screen grid. The coupling 6 produces an effective quenching resistance of Ra/1+ gRa. A rejector circuit 2 may be provided between the valve and the circuit to be damped to eliminate the quenching frequency and its harmonics. Fig. 3 shows an arrangement in which the pentode 1 is the regenerative valve and a separate quench oscillator 17 reduces the anode voltage so as to carry the valve 1 to the low impedance portion of its characteristic during the quench periods. The Provisional Specification gives numerical data for a circuit using a regenerative pentode with the anode coupled to the grid by a condenser. Specification 439,103 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1182035A GB455298A (en) | 1935-04-17 | 1935-04-17 | Improvements in or relating to valve circuits for receiving radio signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1182035A GB455298A (en) | 1935-04-17 | 1935-04-17 | Improvements in or relating to valve circuits for receiving radio signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB455298A true GB455298A (en) | 1936-10-19 |
Family
ID=9993281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1182035A Expired GB455298A (en) | 1935-04-17 | 1935-04-17 | Improvements in or relating to valve circuits for receiving radio signals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB455298A (en) |
-
1935
- 1935-04-17 GB GB1182035A patent/GB455298A/en not_active Expired
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