GB503083A - Improvements in or relating to thermionic amplifiers - Google Patents
Improvements in or relating to thermionic amplifiersInfo
- Publication number
- GB503083A GB503083A GB2625037A GB2625037A GB503083A GB 503083 A GB503083 A GB 503083A GB 2625037 A GB2625037 A GB 2625037A GB 2625037 A GB2625037 A GB 2625037A GB 503083 A GB503083 A GB 503083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- diagonal
- bridge
- amplifier
- feed
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
- H03G7/04—Volume compression or expansion in amplifiers having discharge tubes incorporating negative feedback
Landscapes
- Amplifiers (AREA)
Abstract
503,083. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and MEERS, R. A. Sept. 28, 1937, No. 26250. [Class 40 (v)] The output circuit of an amplifier between the output electrode and earth includes a negative feed-back impedance which comprises a non-linear resistance or resistances the value of which is varied by a gain-controlling voltage. In one embodiment, Fig. 1, a feed-back resistance R3 common to the anode and grid circuits of an amplifier V1 is shunted by a bridge W of metal rectifiers one diagonal of which is connected through condensers C5, C6 across the resistance R3, the other diagonal being connected across a source DC of gain controlling potential. In a second embodiment, Fig. 2, the feed-back resistance R3 with its variable shunt W1 is connected across one diagonal of a bridge of resistances R5 .... R8 across the other diagonal of which is connected the output transformer T2, the resistance R5 of the bridge being in series with condenser C3 between the anode and cathode of the amplifier V1. Reference has been directed by the Comptroller to Specification 479,388.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2625037A GB503083A (en) | 1937-09-28 | 1937-09-28 | Improvements in or relating to thermionic amplifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2625037A GB503083A (en) | 1937-09-28 | 1937-09-28 | Improvements in or relating to thermionic amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB503083A true GB503083A (en) | 1939-03-28 |
Family
ID=10240693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2625037A Expired GB503083A (en) | 1937-09-28 | 1937-09-28 | Improvements in or relating to thermionic amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB503083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1057650B (en) * | 1955-09-29 | 1959-05-21 | Siemens Ag | Circuit arrangement to increase the control effect and to expand the control range of an amplifier with negative feedback via a controllable resistor (e.g. controlled hot conductor) |
-
1937
- 1937-09-28 GB GB2625037A patent/GB503083A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1057650B (en) * | 1955-09-29 | 1959-05-21 | Siemens Ag | Circuit arrangement to increase the control effect and to expand the control range of an amplifier with negative feedback via a controllable resistor (e.g. controlled hot conductor) |
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