GB875250A - Improvements in or relating to very high frequency amplifier arrangements - Google Patents
Improvements in or relating to very high frequency amplifier arrangementsInfo
- Publication number
- GB875250A GB875250A GB3496159A GB3496159A GB875250A GB 875250 A GB875250 A GB 875250A GB 3496159 A GB3496159 A GB 3496159A GB 3496159 A GB3496159 A GB 3496159A GB 875250 A GB875250 A GB 875250A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- valve
- high frequency
- frequency amplifier
- odd number
- 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
- 230000005540 biological transmission Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
Abstract
875,250. Valve frequency selective amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. March 22, 1960 [Oct. 15, 1959], No. 34961/59. Class 40(6) In a very high frequency amplifier having an input circuit comprising two transmission lines T 1 , T 2 , each an odd number of quarter wavelengths of the mid-band frequency in length, and the line T 1 comprising the electrode leads of the valve V and line T4, a short circuited transmission line T3 also an odd number of quarter wavelengths in length is connected to the junction of lines T 1 , T 2 to render the input impedance at terminals 1 substantially purely resistive over a wide frequency band. The shaded portions of line T 2 , T 4 connected to the grid of valve V is constituted by an earth plane. An arrangement for a directly heated cathode is described with reference to Fig: 2 (not shown).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3496159A GB875250A (en) | 1959-10-15 | 1959-10-15 | Improvements in or relating to very high frequency amplifier arrangements |
| ES0258403A ES258403A1 (en) | 1959-10-15 | 1960-05-27 | Improvements in or relating to very high frequency amplifier arrangements |
| CH848660A CH371488A (en) | 1959-10-15 | 1960-07-25 | Very high frequency amplifier |
| DEM46814A DE1112138B (en) | 1959-10-15 | 1960-10-13 | High frequency amplifiers, in particular for television purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3496159A GB875250A (en) | 1959-10-15 | 1959-10-15 | Improvements in or relating to very high frequency amplifier arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB875250A true GB875250A (en) | 1961-08-16 |
Family
ID=10372144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3496159A Expired GB875250A (en) | 1959-10-15 | 1959-10-15 | Improvements in or relating to very high frequency amplifier arrangements |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH371488A (en) |
| DE (1) | DE1112138B (en) |
| ES (1) | ES258403A1 (en) |
| GB (1) | GB875250A (en) |
-
1959
- 1959-10-15 GB GB3496159A patent/GB875250A/en not_active Expired
-
1960
- 1960-05-27 ES ES0258403A patent/ES258403A1/en not_active Expired
- 1960-07-25 CH CH848660A patent/CH371488A/en unknown
- 1960-10-13 DE DEM46814A patent/DE1112138B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES258403A1 (en) | 1960-09-01 |
| DE1112138B (en) | 1961-08-03 |
| CH371488A (en) | 1963-08-31 |
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