CH202088A - Circuit with a discharge tube which contains at least one cathode, a control grid, an auxiliary cathode which emits secondary during electron bombardment and an anode. - Google Patents

Circuit with a discharge tube which contains at least one cathode, a control grid, an auxiliary cathode which emits secondary during electron bombardment and an anode.

Info

Publication number: CH202088A
Authority: CH; Switzerland
Prior art keywords: cathode; anode; circuit; discharge tube; control grid
Prior art date: 1937-03-10

Application number

Other languages

German (de)

Inventor

Gloeilampenfabrieken N Philips

Original Assignee

Philips Nv

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.)

1937-03-10

Filing date

1938-03-08

Publication date

1938-12-31

1938-03-08 Application filed by Philips Nv filed Critical Philips Nv

1938-12-31 Publication of CH202088A publication Critical patent/CH202088A/en

Classifications

- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is DC
- G05F1/52—Regulating voltage or current wherein the variable actually regulated by the final control device is DC using discharge tubes in series with the load as final control devices
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
- H01J43/025—Circuits therefor

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Electromagnetism (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Automation & Control Theory (AREA)
Cold Cathode And The Manufacture (AREA)
Fluid-Pressure Circuits (AREA)

CH202088D 1937-03-10 1938-03-08 Circuit with a discharge tube which contains at least one cathode, a control grid, an auxiliary cathode which emits secondary during electron bombardment and an anode. CH202088A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL202088X		1937-03-10

Publications (1)

Publication Number	Publication Date
CH202088A true CH202088A (en)	1938-12-31

Family

ID=19778390

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH202088D CH202088A (en)	1937-03-10	1938-03-08	Circuit with a discharge tube which contains at least one cathode, a control grid, an auxiliary cathode which emits secondary during electron bombardment and an anode.

Country Status (6)

Country	Link
US (1)	US2235190A (en)
BE (1)	BE426821A (en)
CH (1)	CH202088A (en)
FR (1)	FR835012A (en)
GB (1)	GB498577A (en)
NL (1)	NL47700C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE449722A (en) *	1942-03-13
BE469303A (en) *	1945-10-01
US2541019A (en) *	1946-07-27	1951-02-13	Fed Telecomm Lab Inc	Demodulator system
US2598326A (en) *	1946-11-20	1952-05-27	Emi Ltd	Negative feedback amplifier
US2617750A (en) *	1950-01-10	1952-11-11	Interchem Corp	Decorative and protective sheet
NL81595C (en) *	1950-08-25
US2859345A (en) *	1953-03-12	1958-11-04	Rca Corp	Electrically tunable oscillator
US3027517A (en) *	1958-08-21	1962-03-27	Edgerton Germeshausen And Grie	Blocking oscillator system

0
- BE BE426821D patent/BE426821A/xx unknown
- NL NL47700D patent/NL47700C/xx active
1938
- 1938-03-07 GB GB7155/38A patent/GB498577A/en not_active Expired
- 1938-03-08 CH CH202088D patent/CH202088A/en unknown
- 1938-03-09 FR FR835012D patent/FR835012A/en not_active Expired
- 1938-03-09 US US194788A patent/US2235190A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
BE426821A (en)
US2235190A (en)	1941-03-18
NL47700C (en)
GB498577A (en)	1939-01-10
FR835012A (en)	1938-12-09

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