GB609824A - Improvements in or relating to resonant electric circuits - Google Patents
Improvements in or relating to resonant electric circuitsInfo
- Publication number
- GB609824A GB609824A GB2556545A GB2556545A GB609824A GB 609824 A GB609824 A GB 609824A GB 2556545 A GB2556545 A GB 2556545A GB 2556545 A GB2556545 A GB 2556545A GB 609824 A GB609824 A GB 609824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- condenser
- coupling
- selectivity
- sensitive
- 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
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
Abstract
609,824. Impedance networks. COURSEY, P. R., SNELL, L. J., STEATITE & PORCELAIN PRODUCTS, Ltd., and DUBILIER CONDENSER CO. (1925), Ltd. Oct. 2, 1945, No. 25565. [Class 40 (viii)] [Also in Group XL (c)] In a band-pass filter or aerial coupling having automatic control of selectivity, a voltage-sensitive condenser having a ceramic dielectric based on compounds of titanium and alkaline-earth metals, as described in Specifications 574,577 and 601,109, [both in Group XXXVI], forms part of a circuit whose natural frequency consequently depends on the voltage applied. An amplifier with automatic selectivity-control may comprise a bandpass filter 33, 34, Fig. 5, in which as the signalstrength increases the band width is widened by the action of the voltage-sensitive condenser 32. A similar result is obtained by using the voltage-sensitive condenser as a series arm coupling two tuned circuits, Fig. 7 (not shown), or as at 43 in an aerial coupling, Fig. 8. The Specification describes several other network arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2556545A GB609824A (en) | 1945-10-02 | 1945-10-02 | Improvements in or relating to resonant electric circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2556545A GB609824A (en) | 1945-10-02 | 1945-10-02 | Improvements in or relating to resonant electric circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB609824A true GB609824A (en) | 1948-10-07 |
Family
ID=10229746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2556545A Expired GB609824A (en) | 1945-10-02 | 1945-10-02 | Improvements in or relating to resonant electric circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB609824A (en) |
-
1945
- 1945-10-02 GB GB2556545A patent/GB609824A/en not_active Expired
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