GB274472A - Improvements in or relating to electrical amplifying apparatus - Google Patents
Improvements in or relating to electrical amplifying apparatusInfo
- Publication number
- GB274472A GB274472A GB18594/27A GB1859427A GB274472A GB 274472 A GB274472 A GB 274472A GB 18594/27 A GB18594/27 A GB 18594/27A GB 1859427 A GB1859427 A GB 1859427A GB 274472 A GB274472 A GB 274472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- tapped
- condenser
- relating
- tuned
- 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
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000003071 parasitic effect Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
- H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
274,472. Westinghouse Electric & Manufacturing Co., (Assignees of Jarvis, K. W.). July 17, 1926, [Convention date]. Thermionic amplifiers. - In a high-frequency amplifier in which a tapped tuned circuit is arranged to prevent inherent reaction, parasitic oscillations are prevented by means of a stabilizing circuit which provides reverse electromagnetic coupling between the input and output at frequencies above that of the signals but substantially no coupling at the signal frequency. The Figure shows a tapped circuit tuned by the condenser 9 with a neutralizing condenser 18 in which the inductance is in two parts 5, 19 coupled to reversed feed-back inductances 22, 23 to prevent parasitic oscillations. Specification 119,365. is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US123211A US1899758A (en) | 1926-07-17 | 1926-07-17 | Amplifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB274472A true GB274472A (en) | 1927-12-29 |
Family
ID=22407324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18594/27A Expired GB274472A (en) | 1926-07-17 | 1927-07-13 | Improvements in or relating to electrical amplifying apparatus |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1899758A (en) |
| GB (1) | GB274472A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2778934A (en) * | 1953-06-15 | 1957-01-22 | Ben H Tongue | Neutralized amplifier system for ultrahigh to very high frequency converter |
| US3204194A (en) * | 1962-12-17 | 1965-08-31 | Motorola Inc | Amplifier neutralization by r. f. feedback |
-
1926
- 1926-07-17 US US123211A patent/US1899758A/en not_active Expired - Lifetime
-
1927
- 1927-07-13 GB GB18594/27A patent/GB274472A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1899758A (en) | 1933-02-28 |
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