GB415745A - Improvements in or relating to condensers suitable for use in high frequency radio and similar circuits - Google Patents
Improvements in or relating to condensers suitable for use in high frequency radio and similar circuitsInfo
- Publication number
- GB415745A GB415745A GB613433A GB613433A GB415745A GB 415745 A GB415745 A GB 415745A GB 613433 A GB613433 A GB 613433A GB 613433 A GB613433 A GB 613433A GB 415745 A GB415745 A GB 415745A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- condensers
- plates
- relating
- high frequency
- 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
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/258—Temperature compensation means
Abstract
415,745. Electric condensers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and MOULLIN, E. B., 189, Morrell Avenue, Oxford. Feb. 28, 1933, No. 6134. [Class 38 (ii).] In order to prevent changes in the capacity of condensers for use in high-frequency circuits due to temperature variations the plates are made of an alloy having a substantially zero temperature coefficient of expansion (known under the Registered Trade Marks, " Invar," " Elinvar,") coated, for example, by electrodeposition, with a thin shell of copper. The copper shell is of such thickness that the effective resistance at radio frequencies is substantially the same as that of solid copper and a rise in temperature produces a small mechanical stress in the copper plating without producing appreciable alteration in the dimensions of the plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB613433A GB415745A (en) | 1933-02-28 | 1933-02-28 | Improvements in or relating to condensers suitable for use in high frequency radio and similar circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB613433A GB415745A (en) | 1933-02-28 | 1933-02-28 | Improvements in or relating to condensers suitable for use in high frequency radio and similar circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB415745A true GB415745A (en) | 1934-08-28 |
Family
ID=9809043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB613433A Expired GB415745A (en) | 1933-02-28 | 1933-02-28 | Improvements in or relating to condensers suitable for use in high frequency radio and similar circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB415745A (en) |
-
1933
- 1933-02-28 GB GB613433A patent/GB415745A/en not_active Expired
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