GB544250A - Improvements in and relating to electric wave transmission devices - Google Patents
Improvements in and relating to electric wave transmission devicesInfo
- Publication number
- GB544250A GB544250A GB876340A GB876340A GB544250A GB 544250 A GB544250 A GB 544250A GB 876340 A GB876340 A GB 876340A GB 876340 A GB876340 A GB 876340A GB 544250 A GB544250 A GB 544250A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potentiometer
- feedback
- network
- relating
- wave transmission
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
544,250. Valve amplifying circuits. TELE. PHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. April 23, 1941, No. 8763/40. [Class 40 (v)] In a negative feedback amplifier the feedback path includes an input inductance and an output inductance with capacity coupling there between and a potentiometer connected between the high potential ends of the inductances so that the part of the feedback that will pass through the network will depend on the potentiometer setting so as to provide a variable frequency characteristic to the amplifier. Fig. 2 shows a four terminal network 9, 10, 11 shunted by potentiometer 14 to control the proportion of the feedback voltage traversing the network. The potentiometer may be controlled manually or by a pilot signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB876340A GB544250A (en) | 1941-04-23 | 1941-04-23 | Improvements in and relating to electric wave transmission devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB876340A GB544250A (en) | 1941-04-23 | 1941-04-23 | Improvements in and relating to electric wave transmission devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB544250A true GB544250A (en) | 1942-04-03 |
Family
ID=9858802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB876340A Expired GB544250A (en) | 1941-04-23 | 1941-04-23 | Improvements in and relating to electric wave transmission devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB544250A (en) |
-
1941
- 1941-04-23 GB GB876340A patent/GB544250A/en not_active Expired
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