GB360463A - Improvements in or relating to high frequency amplifying systems - Google Patents
Improvements in or relating to high frequency amplifying systemsInfo
- Publication number
- GB360463A GB360463A GB2336130A GB2336130A GB360463A GB 360463 A GB360463 A GB 360463A GB 2336130 A GB2336130 A GB 2336130A GB 2336130 A GB2336130 A GB 2336130A GB 360463 A GB360463 A GB 360463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuits
- circuit
- valve
- anode
- marconi
- 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
- H03D1/00—Demodulation of amplitude-modulated oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
360,463. Valve detecting circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and ROUND, H. J., Westfield, Muswell Hill, both in London. Aug. 2, 1930, No. 23361. [Class 40 (v).] In order to prevent the varying damping of the oscillatory circuit of a thermionic detector due to the shunting effect of the valve conductance across the anode-filament capacity, the anode-grid capacity is neutralized by known means, the input circuit having low effective resistance of the order of that of a tuned circuit subjected to considerable reaction. The above effect is important where oscillatory circuits of negligible resistance are concerned as for instance with circuits of the type described in Specification 358,932, or a circuit associated with a tuning fork, quartz, or other mechanical oscillator. Neutralization may be effected with a triode rectifier by a balancing condenser C3 as shown in Fig. 3 ; alternatively a screen-grid valve may be used as a detector; or two triodes may be used with push-pull input and parallel output circuits, Fig. 4 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2336130A GB360463A (en) | 1930-08-02 | 1930-08-02 | Improvements in or relating to high frequency amplifying systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2336130A GB360463A (en) | 1930-08-02 | 1930-08-02 | Improvements in or relating to high frequency amplifying systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB360463A true GB360463A (en) | 1931-11-02 |
Family
ID=10194402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2336130A Expired GB360463A (en) | 1930-08-02 | 1930-08-02 | Improvements in or relating to high frequency amplifying systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB360463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755948C (en) * | 1937-01-09 | 1955-07-28 | Opta Radio A G | Amplitude filter circuit for the separation of picture content signals and synchronization characters in television |
-
1930
- 1930-08-02 GB GB2336130A patent/GB360463A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755948C (en) * | 1937-01-09 | 1955-07-28 | Opta Radio A G | Amplitude filter circuit for the separation of picture content signals and synchronization characters in television |
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