FR2401553A1 - Tuner for receivers with movable slide - has carriage mounted on threaded shaft carrying cores for coil tuning under tension between shaft and guide rails - Google Patents
Tuner for receivers with movable slide - has carriage mounted on threaded shaft carrying cores for coil tuning under tension between shaft and guide railsInfo
- Publication number
- FR2401553A1 FR2401553A1 FR7820535A FR7820535A FR2401553A1 FR 2401553 A1 FR2401553 A1 FR 2401553A1 FR 7820535 A FR7820535 A FR 7820535A FR 7820535 A FR7820535 A FR 7820535A FR 2401553 A1 FR2401553 A1 FR 2401553A1
- Authority
- FR
- France
- Prior art keywords
- shaft
- tuner
- receivers
- guide rails
- under tension
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
- H03J1/08—Toothed-gear drive; Worm drive
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Auxiliary Devices For Music (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The rotation of a tuning shaft is converted for coil variometers tuning into a rectilinear motion. The movable carriage is mounted on a threaded part of the tuning shaft and carries the tuning cores for the coils. The carriage (7) made by injection moulding of an elastic plastic, is provided on two opposite sides with projections (14, 15) sliding on parallel guiding rails. The carriage is so designed that a mechanical tension is generated between the threaded shaft (6) and the guiding rails thus preventing twisting and moving on edge.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2737783A DE2737783C2 (en) | 1977-08-22 | 1977-08-22 | Voting device for receiving devices |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2401553A1 true FR2401553A1 (en) | 1979-03-23 |
FR2401553B3 FR2401553B3 (en) | 1981-03-20 |
Family
ID=6016995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7820535A Granted FR2401553A1 (en) | 1977-08-22 | 1978-07-10 | Tuner for receivers with movable slide - has carriage mounted on threaded shaft carrying cores for coil tuning under tension between shaft and guide rails |
Country Status (4)
Country | Link |
---|---|
BR (1) | BR7805366A (en) |
DE (1) | DE2737783C2 (en) |
FR (1) | FR2401553A1 (en) |
ZA (1) | ZA784757B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2820954A (en) * | 1955-01-07 | 1958-01-21 | Gen Instrument Corp | Permeability tuner structure |
-
1977
- 1977-08-22 DE DE2737783A patent/DE2737783C2/en not_active Expired
-
1978
- 1978-07-10 FR FR7820535A patent/FR2401553A1/en active Granted
- 1978-08-21 ZA ZA00784757A patent/ZA784757B/en unknown
- 1978-08-21 BR BR7805366A patent/BR7805366A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR7805366A (en) | 1979-04-17 |
ZA784757B (en) | 1979-08-29 |
FR2401553B3 (en) | 1981-03-20 |
DE2737783A1 (en) | 1979-03-08 |
DE2737783C2 (en) | 1983-02-10 |
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