GB639374A - Improvements in or relating to a tuning device - Google Patents
Improvements in or relating to a tuning deviceInfo
- Publication number
- GB639374A GB639374A GB18490/48A GB1849048A GB639374A GB 639374 A GB639374 A GB 639374A GB 18490/48 A GB18490/48 A GB 18490/48A GB 1849048 A GB1849048 A GB 1849048A GB 639374 A GB639374 A GB 639374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensers
- plate
- individual
- common
- tuning device
- 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
- H03J5/06—Settings determined by single indexing means with snap action
Landscapes
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
639,374. Electric condensers. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 9, 1948, No. 18490. Convention date, Aug. 13, 1947. [Class 37] A tuning device comprises a number of preset adjustable condensers 15, 16 which may be connected as required, by a cam-shaft 44 operated by the tuning control knob, to the tuned circuit via contacts 43, 45. Each preset adjustable condenser comprises a fixed plate 20 which is common to all condensers in each bank, an individual adjustable plate 22 connected to the common plate by the adjusting screw 36, and an individual intermediate plate 27 insulated by dielectric sheets 25, 26 forming the live electrode which is connected to the individual switch contacts 43, 45.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639374XA | 1947-08-13 | 1947-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639374A true GB639374A (en) | 1950-06-28 |
Family
ID=22052479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18490/48A Expired GB639374A (en) | 1947-08-13 | 1948-07-09 | Improvements in or relating to a tuning device |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE483897A (en) |
| GB (1) | GB639374A (en) |
-
0
- BE BE483897D patent/BE483897A/xx unknown
-
1948
- 1948-07-09 GB GB18490/48A patent/GB639374A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE483897A (en) |
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