GB683319A - Improvements in or relating to thermionic valve amplifiers - Google Patents
Improvements in or relating to thermionic valve amplifiersInfo
- Publication number
- GB683319A GB683319A GB1553050A GB1553050A GB683319A GB 683319 A GB683319 A GB 683319A GB 1553050 A GB1553050 A GB 1553050A GB 1553050 A GB1553050 A GB 1553050A GB 683319 A GB683319 A GB 683319A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- input
- impedance
- positive
- output
- 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
- 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)
Abstract
683,319. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 28, 1951 [June 21, 1960], No. 15530/50. Class 40 (vi). In an amplifier in which the input is applied to the cathode of a first valve and the output is derived from the anode a second valve is connected having its input in parallel with the first valve and its output feeding the grid of the first valve so that the amplifier may exhibit an infinite positive or negative input impedance and a zero, positive, or negative output impedance. The Figure shows an amplifier in which the input is applied across the cathode impedance Zc in parallel to the valves 1, 11, the voltage produced across the anode load R of valve 11 being applied directly to the control grid of valve 1 from whose anode circuit the output voltage is derived. It is shown that by adjusting the values of the circuit constants the input impedance may be made infinite in either a positive or negative sense and the output impedance either zero, positive or negative.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1553050A GB683319A (en) | 1950-06-21 | 1950-06-21 | Improvements in or relating to thermionic valve amplifiers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1553050A GB683319A (en) | 1950-06-21 | 1950-06-21 | Improvements in or relating to thermionic valve amplifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB683319A true GB683319A (en) | 1952-11-26 |
Family
ID=10060760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1553050A Expired GB683319A (en) | 1950-06-21 | 1950-06-21 | Improvements in or relating to thermionic valve amplifiers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB683319A (en) |
-
1950
- 1950-06-21 GB GB1553050A patent/GB683319A/en not_active Expired
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