GB459246A - Improvements in and relating to short wave wireless receiving apparatus - Google Patents
Improvements in and relating to short wave wireless receiving apparatusInfo
- Publication number
- GB459246A GB459246A GB2711435A GB2711435A GB459246A GB 459246 A GB459246 A GB 459246A GB 2711435 A GB2711435 A GB 2711435A GB 2711435 A GB2711435 A GB 2711435A GB 459246 A GB459246 A GB 459246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- earthed
- circuit
- class
- connection
- 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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Selective Calling Equipment (AREA)
Abstract
459,246. Valve circuits for wireless reception. KRAMOLIN, L. L. DE, Rittergut, Gross-Glienicke, Kladow, Berlin. Oct. 1, 1935, No. 27114. [Class 40 (v)] A short-wave unit adapted for connection to a broadcast receiver by plugging into the detector valve socket comprises a valve the electrodes of which are connected at three points to the tuned input circuit, the tapping E on the inductance 4 being so chosen that the stray capacities to earth of the grid circuit side and the aerial side are balanced about the earthed tapping point. The cathode circuit is earthed over condenser 17 to enable working on A.C. or D.C. supply mains and the leads 10 between unit and set may be surrounded by an earthed screening coil 12. The bias of the valve is adjusted by connecting the plugs 13 to socket 15 or 16 on each side of the filament circuit. The condensers 18, 19 and corresponding terminals are provided for connection of a gramophone pick-up, particularly on D.C. mains. Specifications 256,653, 296,806, 310,940, [all in Class 40 (v)], and 356,257 are referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1932D0063711 DE686969C (en) | 1932-06-15 | 1932-06-15 | Shortwave circuit |
| GB2711435A GB459246A (en) | 1935-10-01 | 1935-10-01 | Improvements in and relating to short wave wireless receiving apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2711435A GB459246A (en) | 1935-10-01 | 1935-10-01 | Improvements in and relating to short wave wireless receiving apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB459246A true GB459246A (en) | 1937-01-05 |
Family
ID=10254427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2711435A Expired GB459246A (en) | 1932-06-15 | 1935-10-01 | Improvements in and relating to short wave wireless receiving apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB459246A (en) |
-
1935
- 1935-10-01 GB GB2711435A patent/GB459246A/en not_active Expired
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