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
GB833428A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Priority to GB833428ApriorityCriticalpatent/GB319375A/en
Publication of GB319375ApublicationCriticalpatent/GB319375A/en
H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
Landscapes
Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
Amplifiers
(AREA)
Abstract
319,375. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). March 19, 1928. Thermionic amplifiers.- A resistance-coupled amplifier is characterized by the use of a known type of valve having two or more parallel filaments 7, 14 energized by a terminal pressure of not more than one volt.
GB833428A1928-03-191928-03-19Improvements in or relating to resistance-coupled amplifiers
ExpiredGB319375A
(en)
Improvements in or relating to means for deriving feedback potentials for use in thermionic valve repeater or amplifier circuit arrangements employing inverse feedback