GB331191A - Improvements in or relating to radio signal receiving apparatus - Google Patents
Improvements in or relating to radio signal receiving apparatusInfo
- Publication number
- GB331191A GB331191A GB943229A GB943229A GB331191A GB 331191 A GB331191 A GB 331191A GB 943229 A GB943229 A GB 943229A GB 943229 A GB943229 A GB 943229A GB 331191 A GB331191 A GB 331191A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- circuit
- frequency
- condenser
- windings
- 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
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/46—Reflex amplifiers
- H03F3/48—Reflex amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
331,191. Green, H., and Celebritone, Ltd. March 23, 1929. Thermionic valve circuits.-In a reflex circuit, inter-electrode capacity of the dual purpose valve is wholly or partly neutralized and the' rectified audio-frequency currents are fed back to the valve grid through impedances preventing the flow �f radio-frequency currents into the rectifier circuit. The neutralizing condenser 5 may be used to control reaction in which case neutralization is incomplete. The output from the crystal rectifier 13 is fed back to the grid of the valve 4 through a high-frequency choke 16 and high non-inductive resistance 17, the former preventing highfrequency currents from flowing into the crystal circuit, while the resistance assists the choke and also serves to prevent low-frequency backcoupling. The transformer 11 has identical primary and secondary windings wound on the same former, the condenser 12 tuning both windings; the capacity of the windings may be increased by a parallel condenser 19. The device 7 may be an intervalve or output transformer &c. or the sound reproducer may be directly connected in the anode circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB943229A GB331191A (en) | 1929-03-23 | 1929-03-23 | Improvements in or relating to radio signal receiving apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB943229A GB331191A (en) | 1929-03-23 | 1929-03-23 | Improvements in or relating to radio signal receiving apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB331191A true GB331191A (en) | 1930-06-23 |
Family
ID=9871853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB943229A Expired GB331191A (en) | 1929-03-23 | 1929-03-23 | Improvements in or relating to radio signal receiving apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB331191A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2995652A (en) * | 1957-09-13 | 1961-08-08 | Ind Dev Engineering Associates | Single transistor reflex circuit |
-
1929
- 1929-03-23 GB GB943229A patent/GB331191A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2995652A (en) * | 1957-09-13 | 1961-08-08 | Ind Dev Engineering Associates | Single transistor reflex circuit |
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