FR807964A - Tuning indicator tubes, more particularly for radio receivers - Google Patents

Tuning indicator tubes, more particularly for radio receivers

Info

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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US28665A external-priority patent/US2051188A/en
Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR807964A publication Critical patent/FR807964A/en
Expired legal-status Critical Current

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
FR807964D 1935-06-27 1936-06-19 Tuning indicator tubes, more particularly for radio receivers Expired FR807964A (en)

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) GB481791A (en)
NL (2) NL57947C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
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
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
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
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)

* Cited by examiner, † Cited by third party
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
CH293547A (en) * 1949-09-09 1953-09-30 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

Cited By (8)

* Cited by examiner, † Cited by third party
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
GB481791A (en) 1938-03-16
DE692964C (en) 1940-06-29
NL57947C (en)
CH203784A (en) 1939-03-31
US2130162A (en) 1938-09-13
NL46087C (en)

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