GB422029A - Improvements in or relating to radio and like receivers - Google Patents
Improvements in or relating to radio and like receiversInfo
- Publication number
- GB422029A GB422029A GB13426/34A GB1342634A GB422029A GB 422029 A GB422029 A GB 422029A GB 13426/34 A GB13426/34 A GB 13426/34A GB 1342634 A GB1342634 A GB 1342634A GB 422029 A GB422029 A GB 422029A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- grid
- circuits
- intermediate frequency
- tuned
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
422,029. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. May 3, 1934, No. 13426. Convention date, May 23, 1933. [Class 40 (v)] A superheterodyne receiver comprises an hexode valve M, signals being applied between the cathode and first grid, the second grid being earthed, the third and fourth grids being coupled over a tuned circuit O to produce local oscillations, and the anode coupled over circuits Z, Z<1>, tuned to the intermediate frequency, to a second detector, the circuit of the fourth grid including a coil coupled to the anode circuit Z to provide reaction and reduce damping in the circuit Z. According to the Specification as open to inspection under Sect. 91, the intermediate frequency circuits may have their damping reduced by use of reaction in the second detector stage. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE422029X | 1933-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB422029A true GB422029A (en) | 1935-01-03 |
Family
ID=6461491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13426/34A Expired GB422029A (en) | 1933-05-23 | 1934-05-03 | Improvements in or relating to radio and like receivers |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2067536A (en) |
| BE (1) | BE403264A (en) |
| GB (1) | GB422029A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2516887A (en) * | 1943-10-30 | 1950-08-01 | Int Standard Electric Corp | Ultra high frequency radio receiver |
| BE474392A (en) * | 1946-06-22 | |||
| FR963921A (en) * | 1947-03-29 | 1950-07-26 | ||
| US2616036A (en) * | 1948-12-29 | 1952-10-28 | Zenith Radio Corp | Signal translating apparatus |
| US2616035A (en) * | 1948-12-30 | 1952-10-28 | Zenith Radio Corp | Radio receiver employing a single tube amplifier-converter |
| US2795761A (en) * | 1952-02-14 | 1957-06-11 | Philco Corp | Modulator |
-
0
- BE BE403264D patent/BE403264A/xx unknown
-
1934
- 1934-05-03 GB GB13426/34A patent/GB422029A/en not_active Expired
- 1934-05-04 US US723815A patent/US2067536A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE403264A (en) | |
| US2067536A (en) | 1937-01-12 |
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