GB281740A - Improvements in thermionic valve circuits - Google Patents
Improvements in thermionic valve circuitsInfo
- Publication number
- GB281740A GB281740A GB1694926A GB1694926A GB281740A GB 281740 A GB281740 A GB 281740A GB 1694926 A GB1694926 A GB 1694926A GB 1694926 A GB1694926 A GB 1694926A GB 281740 A GB281740 A GB 281740A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shunted
- condenser
- resistance
- closely coupled
- parts
- 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
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000010355 oscillation 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
- H03F1/12—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means
- H03F1/13—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means in discharge-tube amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
281,740. Gramophone Co., Ltd., (Victor Talking Machine Co.). July 6, 1926. Thermionic amplifiers.-In order to neutralize the effect of internal capacity in thermionic amplifiers parts of one or both coils of an intervalve transformer are shunted by a condenser in series with a resistance. Thus the secondary 8, Fig. 1, part of which is closely coupled and part loosely coupled with the primary 5, has a condenser 10 and resistance 11 shunted across the closely coupled part. In the system shown in Fig. 2 the primary coil 20 is in two parts connected in shunt, and the secondary coil 24 is similarly divided, the condenser 10 being connected to two electrically symmetrical points in the two halves of the secondary. The number of turns shunted, the capacity 10 and the resistance 11 are so adjusted that the load on the valve 3 is capacitative, so that oscillation is dis. couraged at high frequencies without loss of amplification at low frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1694926A GB281740A (en) | 1926-07-06 | 1926-07-06 | Improvements in thermionic valve circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1694926A GB281740A (en) | 1926-07-06 | 1926-07-06 | Improvements in thermionic valve circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB281740A true GB281740A (en) | 1927-12-06 |
Family
ID=10086553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1694926A Expired GB281740A (en) | 1926-07-06 | 1926-07-06 | Improvements in thermionic valve circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB281740A (en) |
-
1926
- 1926-07-06 GB GB1694926A patent/GB281740A/en not_active Expired
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