GB678061A - Improvements in or relating to thermionic valve amplifier arrangements - Google Patents
Improvements in or relating to thermionic valve amplifier arrangementsInfo
- Publication number
- GB678061A GB678061A GB1737350A GB1737350A GB678061A GB 678061 A GB678061 A GB 678061A GB 1737350 A GB1737350 A GB 1737350A GB 1737350 A GB1737350 A GB 1737350A GB 678061 A GB678061 A GB 678061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- input
- cathode
- anode
- negative
- 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
- 230000002238 attenuated effect Effects 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)
Abstract
678,061. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 15, 1951 [July 11, 1950], No. 17373/50. Class 40 (vi). In an amplifier which may exhibit substantially zero output impedance and infinite inputimpedance, the input is applied to the anode of a first valve 2 and the cathode of a second valve 4, the load being connected between the cathode and anode respectively. An amplified or attenuated signal derived from the input is applied between the grid of valve 2 and cathode of valve 4 while a similar signal is applied between the anode of the valve 2 and the grid of valve 4. It is shown mathematically that by suitable choice of the co-efficients K1, K2 the output impedance may be made zero, the input impedance being negative. By the use of a positive shunt-resistance equal in value to the negative resistance the input resistance may be made infinite with a shunt negative reactance. The valves may be shunted with resistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1737350A GB678061A (en) | 1950-07-11 | 1950-07-11 | Improvements in or relating to thermionic valve amplifier arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1737350A GB678061A (en) | 1950-07-11 | 1950-07-11 | Improvements in or relating to thermionic valve amplifier arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB678061A true GB678061A (en) | 1952-08-27 |
Family
ID=10094077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1737350A Expired GB678061A (en) | 1950-07-11 | 1950-07-11 | Improvements in or relating to thermionic valve amplifier arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB678061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121845A (en) * | 1960-09-30 | 1964-02-18 | Wesley A Fails | Difference amplifier |
-
1950
- 1950-07-11 GB GB1737350A patent/GB678061A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121845A (en) * | 1960-09-30 | 1964-02-18 | Wesley A Fails | Difference amplifier |
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