GB892979A - Improvements in or relating to tuning devices for television receivers - Google Patents
Improvements in or relating to tuning devices for television receiversInfo
- Publication number
- GB892979A GB892979A GB3608859A GB3608859A GB892979A GB 892979 A GB892979 A GB 892979A GB 3608859 A GB3608859 A GB 3608859A GB 3608859 A GB3608859 A GB 3608859A GB 892979 A GB892979 A GB 892979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rest
- depressed
- stop
- button
- actuating
- 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
- H03J5/04—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 operated by hand
- H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
892,979. Keyboard switches. EGEN ELECTRIC Ltd., and BOWMAN, A. Jan. 24, 1961 [Oct. 24, 1959], No. 36088/59. Class 38 (5). [Also in Group XL (c)] A wave-change switch may be operated by a press-button unit for a television receiver, which unit enables the receiver to be tuned to either of two predetermined frequencies in a given frequency band, depending on the position of rest of a member connected to the tuning reactance, the member having two positions of rest, one pushbutton when actuated causing the member to assume one position of rest and another pushbutton when actuated causing the member to assume the other position of rest. As shown, a push-button B1B on bell-crank lever 11a, pivoted at point 15, has been depressed. This operated the latch bar 19, which released any previously depressed button and caused actuating rod 8 to move rearwards against return spring 13. This moved claw 9 which moved the actuating plate 6 beyond the centre of its travel and spring 7 snapped the rocker plate 4 against stop 22, stop 22 being adjustable by pull-out knob 27 when key B1B is depressed. The cores of the inductors 5 are attached to top of rocker plate 4. If key B1A is depressed the actuating lever moves lever 29 and claw 9, and rocker plate 4 is snapped over to rest on stop 21 which is adjustable by pull-out knob 28. Tab 14 on actuating lever may be used to step a wave-change switch when a plurality of such pairs of buttons are provided in a tuner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3608859A GB892979A (en) | 1959-10-24 | 1959-10-24 | Improvements in or relating to tuning devices for television receivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3608859A GB892979A (en) | 1959-10-24 | 1959-10-24 | Improvements in or relating to tuning devices for television receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB892979A true GB892979A (en) | 1962-04-04 |
Family
ID=10384821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3608859A Expired GB892979A (en) | 1959-10-24 | 1959-10-24 | Improvements in or relating to tuning devices for television receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB892979A (en) |
-
1959
- 1959-10-24 GB GB3608859A patent/GB892979A/en not_active Expired
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