GB264910A - Improvements in and relating to thermionic valve amplifying arrangements - Google Patents
Improvements in and relating to thermionic valve amplifying arrangementsInfo
- Publication number
- GB264910A GB264910A GB2659525A GB2659525A GB264910A GB 264910 A GB264910 A GB 264910A GB 2659525 A GB2659525 A GB 2659525A GB 2659525 A GB2659525 A GB 2659525A GB 264910 A GB264910 A GB 264910A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- resistance
- coil
- transformer
- valve
- 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
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/33—Modifications of amplifiers to reduce non-linear distortion in discharge-tube amplifiers
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
264,910. Graham, M., and Graham, A., (Representatives of Graham, E. A.), and Paddle, L. H. Oct, 23, 1925. Transformers. - The inter-valve couplings of low - frequency amplifiers comprise a transformer or auto-transformer 2, Fig. 2, with the primary coil or section shunted by a resistance 5 and a secondary coil or section connected through a condenser 8 to the grid of the next valve. The grid circuit of this valve includes a. biasing resistance 12 and may also include a choke coil 13 and a batterv 11<a>. The condenser 8 may be connected to the upper end of the coil 2, or may be adjustably connected by tappings 15 as shown. Alternatively a potentiometer resistance may be shunted across the coil 2 and the condenser 8 connected to the movable slider. The resistance 5 prevents distortion by equalizing the impedance of the output circuit of the valve for different frequencies. The choke 13 offers high impedance at voice frequencies, and prevents the condenser 8 and resistance 12 from shunting the transformer. Fig. 4 shows a constructional unit comprising the transformer winding 2 and core 20 with the condenser 8, resistances 5, 12, and choke coil 13 supported thereon by brackets. The unit may be enclosed in a metallic casing provided with terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2659525A GB264910A (en) | 1925-10-23 | 1925-10-23 | Improvements in and relating to thermionic valve amplifying arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2659525A GB264910A (en) | 1925-10-23 | 1925-10-23 | Improvements in and relating to thermionic valve amplifying arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB264910A true GB264910A (en) | 1927-01-24 |
Family
ID=10246089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2659525A Expired GB264910A (en) | 1925-10-23 | 1925-10-23 | Improvements in and relating to thermionic valve amplifying arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB264910A (en) |
-
1925
- 1925-10-23 GB GB2659525A patent/GB264910A/en not_active Expired
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