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
GB3476938A
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.)
CECIL ELIAS BRIGHAM
Kolster Brandes Ltd
Original Assignee
CECIL ELIAS BRIGHAM
Kolster Brandes Ltd
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 CECIL ELIAS BRIGHAM, Kolster Brandes LtdfiledCriticalCECIL ELIAS BRIGHAM
Priority to GB3476938ApriorityCriticalpatent/GB521872A/en
Publication of GB521872ApublicationCriticalpatent/GB521872A/en
H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/06—Receivers
H04B1/16—Circuits
H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Prostheses
(AREA)
Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body
(AREA)
Abstract
521,872. Valve circuits for wireless reception. KOLSTER-BRANDES, Ltd., and BRIGHAM. C. E. Nov. 29, 1938, No. 34769. [Class 40 (v)] In a valve having a cathode C, control grid G1, screen grid G2, suppressor grid Cr3, and anode A, positive reaction is derived from an auxiliary grid G4 beyond the suppressor grid. The reaction circuit includes a coil L coupled to the input circuit and connected through a variable resistance R to positive battery, as shown, or through a variable condenser to ground, Fig. 2 (not shown). Specifications 361,351 and 515,271 are referred to.
GB3476938A1938-11-291938-11-29Improvements relating to thermionic valve circuits
ExpiredGB521872A
(en)
Improvements in or relating to circuit arrangements comprising discharge tube having atleast a cathode, a control grid, an anode andan auxiliary cathode emitting electrons under bombardment by electrons
Improvements in or relating to circuit arrangements comprising discharge tube having atleast a cathode, a control grid, an anode andan auxiliary cathode emitting electrons under bombardment by electrons