FR939311A - Ultra Shortwave Oscillator Improvements - Google Patents

Ultra Shortwave Oscillator Improvements

Info

Publication number: FR939311A
Authority: FR; France
Prior art keywords: oscillator; shortwave; ultra; ultra shortwave; shortwave oscillator
Prior art date: 1946-02-08
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

Inventor

John Heaver Fremlin

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric Corp

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.)

1946-02-08

Filing date

1946-08-29

Publication date

1948-11-09

1946-08-29 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1948-11-09 Application granted granted Critical

1948-11-09 Publication of FR939311A publication Critical patent/FR939311A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1817—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator
- H03B5/1835—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator the active element in the amplifier being a vacuum tube
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
- H01J25/06—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron
- H01J25/08—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron with electron stream perpendicular to the axis of the resonator

FR939311D 1946-02-08 1946-08-29 Ultra Shortwave Oscillator Improvements Expired FR939311A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB3987/46A GB649761A (en)	1946-02-08	1946-02-08	Improvements in electron discharge devices of the electron velocity modulation type

Publications (1)

Publication Number	Publication Date
FR939311A true FR939311A (en)	1948-11-09

Family

ID=9768654

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR939311D Expired FR939311A (en)	1946-02-08	1946-08-29	Ultra Shortwave Oscillator Improvements
FR57622D Expired FR57622E (en)	1946-02-08	1947-07-24	Ultra-shortwave oscillator refinements

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
FR57622D Expired FR57622E (en)	1946-02-08	1947-07-24	Ultra-shortwave oscillator refinements

Country Status (6)

Country	Link
US (1)	US2608671A (en)
BE (1)	BE478604A (en)
ES (1)	ES178572A1 (en)
FR (2)	FR939311A (en)
GB (1)	GB649761A (en)
NL (1)	NL76852C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2795764A (en) *	1954-01-14	1957-06-11	Westinghouse Electric Corp	Temperature compensated reference cavity
US3601719A (en) *	1969-10-09	1971-08-24	Int Standard Electric Corp	Temperature-compensated waveguide resonator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1884591A (en) *	1929-04-01	1932-10-25	Wired Radio Inc	Electric discharge tube
GB422869A (en) *	1932-11-12	1935-01-21	Meaf Mach En Apparaten Fab Nv	Improvements in electric discharge devices
GB537518A (en) *	1939-12-22	1941-06-25	Standard Telephones Cables Ltd	Improvements in or relating to electron discharge apparatus of the velocity modulated type
US2424805A (en) *	1942-11-13	1947-07-29	Gen Electric	High-frequency magnetron
US2413364A (en) *	1943-06-12	1946-12-31	Sylvania Electric Prod	Ultra high frequency oscillator

1946
- 1946-02-08 GB GB3987/46A patent/GB649761A/en not_active Expired
- 1946-08-29 FR FR939311D patent/FR939311A/en not_active Expired
1947
- 1947-06-19 US US755550A patent/US2608671A/en not_active Expired - Lifetime
- 1947-06-20 ES ES0178572A patent/ES178572A1/en not_active Expired
- 1947-07-24 FR FR57622D patent/FR57622E/en not_active Expired
- 1947-11-15 NL NL136078A patent/NL76852C/xx active
- 1947-12-24 BE BE478604D patent/BE478604A/xx unknown

Also Published As

Publication number	Publication date
GB649761A (en)	1951-01-31
FR57622E (en)	1953-03-17
US2608671A (en)	1952-08-26
ES178572A1 (en)	1947-08-16
BE478604A (en)	1948-06-24
NL76852C (en)	1955-01-15

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FR953486A (en)	1949-12-07	Antenna improvements
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FR935612A (en)	1948-06-24	Letter-Envelope Improvements
FR937924A (en)	1948-08-31	Frequency dividers
FR954134A (en)	1949-12-19	Discharge tube
FR56684E (en)	1952-10-02	Evaporator improvements
FR934943A (en)	1948-06-04	protractor
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FR920659A (en)	1947-04-15	Pantry improvements
FR1003193A (en)	1952-03-14	Lock
FR920721A (en)	1947-04-16	Whetstone
FR924129A (en)	1947-07-28	Advanced Multi-Frequency Oscillators
FR945485A (en)	1949-05-05	Narrow bandwidth transformers
FR946676A (en)	1949-06-10	Quartz frequency multiplier
FR55077E (en)	1951-06-06	Alidades and advanced eclimeter rulers
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