FR807964A - Tuning indicator tubes, more particularly for radio receivers - Google Patents
Tuning indicator tubes, more particularly for radio receiversInfo
- Publication number
- FR807964A FR807964A FR807964DA FR807964A FR 807964 A FR807964 A FR 807964A FR 807964D A FR807964D A FR 807964DA FR 807964 A FR807964 A FR 807964A
- Authority
- FR
- France
- Prior art keywords
- radio receivers
- tuning indicator
- indicator tubes
- tubes
- tuning
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/14—Magic-eye or analogous tuning indicators
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28665A US2051188A (en) | 1935-06-27 | 1935-06-27 | Tuning indicator tube |
US80474A US2130162A (en) | 1935-06-27 | 1936-05-19 | Tuning indicator tube |
Publications (1)
Publication Number | Publication Date |
---|---|
FR807964A true FR807964A (en) | 1937-01-26 |
Family
ID=26703956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR807964D Expired FR807964A (en) | 1935-06-27 | 1936-06-19 | Tuning indicator tubes, more particularly for radio receivers |
Country Status (6)
Country | Link |
---|---|
US (1) | US2130162A (en) |
CH (1) | CH203784A (en) |
DE (1) | DE692964C (en) |
FR (1) | FR807964A (en) |
GB (2) | GB481790A (en) |
NL (2) | NL46087C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE918949C (en) * | 1952-04-30 | 1954-10-07 | Lorenz C Ag | Voltage indicator tubes, consisting of cathode, screen and luminescent screen with the same penetration along the cathode axis |
DE941306C (en) * | 1952-03-20 | 1956-04-05 | Philips Patentverwaltung | Electron beam tuning indicator tube |
DE950945C (en) * | 1940-07-23 | 1956-10-18 | Lorenz C Ag | Voltage indicator tubes, in particular tuning indicator tubes for radio equipment, with a display system and a further, independent electrode system for other purposes |
DE950873C (en) * | 1951-03-08 | 1956-10-18 | Lorenz C Ag | Vacuum tubes for measuring and displaying electrical voltages, in which a light sector is generated on a fluorescent screen |
DE959481C (en) * | 1952-02-08 | 1957-03-07 | Philips Patentverwaltung | Electron beam tuning indicator tubes |
DE1029490B (en) * | 1952-10-01 | 1958-05-08 | Telefunken Gmbh | Display tubes with two independently controllable deflection electrodes or electrode systems lying parallel to the cathode |
DE1089485B (en) * | 1952-07-16 | 1960-09-22 | Standard Elektrik Lorenz Ag | Voltage and voltage comparison indicator tubes |
DE976143C (en) * | 1952-01-31 | 1963-03-28 | Standard Elek K Lorenz Ag | Voltage indicator tubes |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2436393A (en) * | 1944-12-29 | 1948-02-24 | Bell Telephone Labor Inc | Cathode-ray tube with discharge to deflecting plates |
US2611875A (en) * | 1948-10-01 | 1952-09-23 | Cons Eng Corp | Electron source |
CH291029A (en) * | 1949-09-09 | 1953-05-31 | Siemens Ag | Electron tubes with fluorescent screens, in particular for tuning display |
US2600063A (en) * | 1951-02-20 | 1952-06-10 | Leon S Maloof | Visual electron flow indicator |
US3174072A (en) * | 1961-03-16 | 1965-03-16 | Motorola Inc | Recording level indicator and circuit |
-
0
- NL NL57947D patent/NL57947C/xx active
- NL NL46087D patent/NL46087C/xx active
-
1936
- 1936-05-19 US US80474A patent/US2130162A/en not_active Expired - Lifetime
- 1936-06-16 GB GB16780/36A patent/GB481790A/en not_active Expired
- 1936-06-16 GB GB16781/36A patent/GB481791A/en not_active Expired
- 1936-06-19 FR FR807964D patent/FR807964A/en not_active Expired
- 1936-06-24 CH CH203784D patent/CH203784A/en unknown
- 1936-06-28 DE DE1936R0096685 patent/DE692964C/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE950945C (en) * | 1940-07-23 | 1956-10-18 | Lorenz C Ag | Voltage indicator tubes, in particular tuning indicator tubes for radio equipment, with a display system and a further, independent electrode system for other purposes |
DE950873C (en) * | 1951-03-08 | 1956-10-18 | Lorenz C Ag | Vacuum tubes for measuring and displaying electrical voltages, in which a light sector is generated on a fluorescent screen |
DE976143C (en) * | 1952-01-31 | 1963-03-28 | Standard Elek K Lorenz Ag | Voltage indicator tubes |
DE959481C (en) * | 1952-02-08 | 1957-03-07 | Philips Patentverwaltung | Electron beam tuning indicator tubes |
DE941306C (en) * | 1952-03-20 | 1956-04-05 | Philips Patentverwaltung | Electron beam tuning indicator tube |
DE918949C (en) * | 1952-04-30 | 1954-10-07 | Lorenz C Ag | Voltage indicator tubes, consisting of cathode, screen and luminescent screen with the same penetration along the cathode axis |
DE1089485B (en) * | 1952-07-16 | 1960-09-22 | Standard Elektrik Lorenz Ag | Voltage and voltage comparison indicator tubes |
DE1029490B (en) * | 1952-10-01 | 1958-05-08 | Telefunken Gmbh | Display tubes with two independently controllable deflection electrodes or electrode systems lying parallel to the cathode |
Also Published As
Publication number | Publication date |
---|---|
GB481790A (en) | 1938-03-16 |
CH203784A (en) | 1939-03-31 |
US2130162A (en) | 1938-09-13 |
DE692964C (en) | 1940-06-29 |
NL57947C (en) | |
NL46087C (en) | |
GB481791A (en) | 1938-03-16 |
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