GB515762A - Improvements in or relating to high frequency amplifier arrangements - Google Patents
Improvements in or relating to high frequency amplifier arrangementsInfo
- Publication number
- GB515762A GB515762A GB1741738A GB1741738A GB515762A GB 515762 A GB515762 A GB 515762A GB 1741738 A GB1741738 A GB 1741738A GB 1741738 A GB1741738 A GB 1741738A GB 515762 A GB515762 A GB 515762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- grid
- input
- output
- circuit
- 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
- 239000004020 conductor Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
- H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Microwave Amplifiers (AREA)
Abstract
515,762. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and GREEN, E. June 11, 1938, No. 17417. [Class 40 (v)] Distortion in a driven high frequency amplifier due to the effect of the non-linear load imposed by its grid on the driving amplifier is overcome by arranging the input and output circuits in series with the valve. The grid of VI is earthed through condenser C4 which may be adjustable to neutralize the inductance of the grid lead. Input is applied from L1 to the tuned circuit L2 C2 connected between the valve cathode and earth while the output is taken from the circuit L3 C3 in the anode lead. Due to this arrangement the input contributes power to the output and there is in effect a rectilinear load on the input circuit which " swamps " non-rectilinearity due to grid current. The cathode of the valve may be heated from an earthed supply by employing two conductors in parallel for inductance L2 and using them to carry the heating current. The two conductors may be arranged coaxially with insulation between. An embodiment of the invention using valves in push-pull is described with reference to Fig. 2 (not shown). Reference has been directed by the Comptroller to Specifications 489,289 and 491,803.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1741738A GB515762A (en) | 1938-06-11 | 1938-06-11 | Improvements in or relating to high frequency amplifier arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1741738A GB515762A (en) | 1938-06-11 | 1938-06-11 | Improvements in or relating to high frequency amplifier arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB515762A true GB515762A (en) | 1939-12-13 |
Family
ID=10094832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1741738A Expired GB515762A (en) | 1938-06-11 | 1938-06-11 | Improvements in or relating to high frequency amplifier arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB515762A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2716161A (en) * | 1951-11-26 | 1955-08-23 | Rca Corp | Band selecting amplifiers |
US2742616A (en) * | 1949-08-30 | 1956-04-17 | Bell Telephone Labor Inc | Negative impedance repeaters |
-
1938
- 1938-06-11 GB GB1741738A patent/GB515762A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2742616A (en) * | 1949-08-30 | 1956-04-17 | Bell Telephone Labor Inc | Negative impedance repeaters |
US2716161A (en) * | 1951-11-26 | 1955-08-23 | Rca Corp | Band selecting amplifiers |
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