GB501238A - Improvements in circuit arrangements for varying the tuning of oscillatory circuits - Google Patents
Improvements in circuit arrangements for varying the tuning of oscillatory circuitsInfo
- Publication number
- GB501238A GB501238A GB12967/38A GB1296738A GB501238A GB 501238 A GB501238 A GB 501238A GB 12967/38 A GB12967/38 A GB 12967/38A GB 1296738 A GB1296738 A GB 1296738A GB 501238 A GB501238 A GB 501238A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tuning
- layer
- condenser
- coating
- control voltage
- 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
- 230000003534 oscillatory effect Effects 0.000 title abstract 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 229920001342 Bakelite® Polymers 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229920001800 Shellac Polymers 0.000 abstract 1
- 239000004637 bakelite Substances 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 abstract 1
- 229940113147 shellac Drugs 0.000 abstract 1
- 235000013874 shellac Nutrition 0.000 abstract 1
- 239000004208 shellac Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000011787 zinc oxide Substances 0.000 abstract 1
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
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH501238X | 1937-05-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB501238A true GB501238A (en) | 1939-02-23 |
Family
ID=4516936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12967/38A Expired GB501238A (en) | 1937-05-01 | 1938-04-30 | Improvements in circuit arrangements for varying the tuning of oscillatory circuits |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH202347A (enrdf_load_html_response) |
| GB (1) | GB501238A (enrdf_load_html_response) |
| NL (1) | NL52736C (enrdf_load_html_response) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE906819C (de) * | 1951-01-03 | 1954-03-18 | Heinz Koeberlein | Einrichtung zur Abstimmung des Oszillatorkreises eines UEberlagerungsempfaengers fuer hochfrequente Signale |
| DE925179C (de) * | 1952-10-05 | 1955-03-14 | Artur Schomandl K G | Modulatoranordnung |
| DE977264C (de) * | 1953-03-25 | 1965-08-12 | Siemens Ag | Spannungsabhaengiger Halbleiterkondensator |
| DE1033282B (de) * | 1953-11-27 | 1958-07-03 | Lorenz C Ag | Abstimmanordnung mit spannungsgesteuerten, in Schwingungskreisen angeordneten Blindwiderstaenden |
-
0
- NL NL52736D patent/NL52736C/xx active
-
1937
- 1937-05-01 CH CH202347D patent/CH202347A/de unknown
-
1938
- 1938-04-30 GB GB12967/38A patent/GB501238A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH202347A (de) | 1939-01-15 |
| NL52736C (enrdf_load_html_response) |
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