GB1077585A - Improvements relating to switches having movable portions supporting components of resonant circuits - Google Patents
Improvements relating to switches having movable portions supporting components of resonant circuitsInfo
- Publication number
- GB1077585A GB1077585A GB33158/64A GB3315864A GB1077585A GB 1077585 A GB1077585 A GB 1077585A GB 33158/64 A GB33158/64 A GB 33158/64A GB 3315864 A GB3315864 A GB 3315864A GB 1077585 A GB1077585 A GB 1077585A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- switches
- switch
- resonant circuits
- attached
- 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
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
1,077,585. Waveband switches. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Aug. 14, 1964 [Sept. 11, 1963], No. 33158/64. Heading H3Q. A waveband switch for resonant circuits in receivers (e.g. a turret tuner) has components of the circuit resiliently attached by leaf springs to a movable part of the switch, two switch contacts being rigidly attached to the component. In Fig. 2 a number of alternative inductors (only one shown, 35) are mounted in compartments in a rotating drum 29, the inductors being attached to insulating mountings 31 which in turn are joined to a radial wall 33 of the drum by a leaf spring 32. Contact 27 is also mounted on the insulator 31 and engages a fixed contact 24. The drum can be held in the desired position by a detent. A cam can be provided (Fig. 3, not shown) to increase the pressure between the contacts against the action of the spring. The drum may be divided longitudinally if it is desired to switch several circuits simultaneously. The invention is also applicable to sliding instead of rotating switches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET0024692 | 1963-09-11 | ||
| FR987665A FR1409591A (en) | 1963-09-11 | 1964-09-10 | Wave range switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1077585A true GB1077585A (en) | 1967-08-02 |
Family
ID=74183561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33158/64A Expired GB1077585A (en) | 1963-09-11 | 1964-08-14 | Improvements relating to switches having movable portions supporting components of resonant circuits |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS418099B1 (en) |
| AT (1) | AT245064B (en) |
| FR (1) | FR1409591A (en) |
| GB (1) | GB1077585A (en) |
-
1964
- 1964-08-06 AT AT677664A patent/AT245064B/en active
- 1964-08-14 GB GB33158/64A patent/GB1077585A/en not_active Expired
- 1964-09-10 FR FR987665A patent/FR1409591A/en not_active Expired
- 1964-09-11 JP JP5171264A patent/JPS418099B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS418099B1 (en) | 1966-04-27 |
| AT245064B (en) | 1966-02-10 |
| FR1409591A (en) | 1965-08-27 |
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