FR748785A - Device for improving the characteristics of electronic lamps - Google Patents

Device for improving the characteristics of electronic lamps

Info

Publication number
FR748785A
FR748785A FR748785DA FR748785A FR 748785 A FR748785 A FR 748785A FR 748785D A FR748785D A FR 748785DA FR 748785 A FR748785 A FR 748785A
Authority
FR
France
Prior art keywords
improving
electronic lamps
lamps
electronic
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR748785A publication Critical patent/FR748785A/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
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H01J21/12—Tubes with variable amplification factor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0032—Tubes with variable amplification factor
FR748785D 1932-01-17 1933-01-10 Device for improving the characteristics of electronic lamps Expired FR748785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET40065D DE716299C (en) 1932-01-17 1932-01-17 Discharge tubes

Publications (1)

Publication Number Publication Date
FR748785A true FR748785A (en) 1933-07-08

Family

ID=7560657

Family Applications (1)

Application Number Title Priority Date Filing Date
FR748785D Expired FR748785A (en) 1932-01-17 1933-01-10 Device for improving the characteristics of electronic lamps

Country Status (2)

Country Link
DE (1) DE716299C (en)
FR (1) FR748785A (en)

Also Published As

Publication number Publication date
DE716299C (en) 1942-01-16

Similar Documents

Publication Publication Date Title
FR732901A (en) Pipe assembly device
FR738579A (en) Device for physical education
FR748785A (en) Device for improving the characteristics of electronic lamps
FR748375A (en) Tipping device for skips
FR766329A (en) Device for launching a top
FR761185A (en) Clutch device
FR808947A (en) Lighting device for crossing vehicles
FR785210A (en) Pipe assembly device
FR759037A (en) Device for teaching music
FR739805A (en) Trailer coupling device
FR740052A (en) Device for stripping pavements
FR751544A (en) Lighting device for crossing vehicles
FR735537A (en) Bagging device
FR727704A (en) Coupling device for vehicles
FR755854A (en) Vehicle lifting device
FR754393A (en) Device producing oscillations
FR833440A (en) Attachment device for wristwatches
FR779608A (en) Lighting device for microscopes
FR730220A (en) Device for maintaining ties
FR44030E (en) Ignition device for adjusting the ignition moment
FR46013E (en) Coupling device for vehicles
FR842233A (en) Lighting device for sound films
FR736118A (en) Lighting device for bicycles
FR740904A (en) Spark plug shielding device
FR757005A (en) Device for adjusting operating variables