GB535277A - Improvements relating to electron discharge tubes - Google Patents

Improvements relating to electron discharge tubes

Info

Publication number
GB535277A
GB535277A GB246340A GB246340A GB535277A GB 535277 A GB535277 A GB 535277A GB 246340 A GB246340 A GB 246340A GB 246340 A GB246340 A GB 246340A GB 535277 A GB535277 A GB 535277A
Authority
GB
United Kingdom
Prior art keywords
lead
valve
class
band
brought out
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
GB246340A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB246340A priority Critical patent/GB535277A/en
Publication of GB535277A publication Critical patent/GB535277A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • 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
    • H03F1/10—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of amplifying elements with multiple electrode connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

535,277. Thermionic valves. TAYLOR, G. H. Feb. 8, 1940, No. 2463. [Class 39 (i)] A thermionic valve is provided with an equipotential cathode having two leads brought out of the envelope to separate connections, one of which is near the anode lead and one near the control grid lead. The figure shows a pentode with a cathode c, one lead c1, being brought out at the top of the valve along with the control grid lead gc and the other c2 through the the pinch along with the anode lead a and the screen and suppressor grid leads gs, gp. The valve may be covered with a metal coating m which is connected to an earth screen. Specification 525,378 is referred to. 535,313. Impedance networks. HAZELTINE CORPORATION. Oct. 24, 1939, No. 28601. Convention date, Nov. 23, 1938. [Class 40 (iii)] A band-pass filter, e.g. for a sound and television receiver, comprising two tuned circuits coupled together is tuned without altering the band-width by connecting up in turn auxiliary coupling members 21a, 22a, 21b, 22b and c which are preferably in shunt to the main circuits. The filter shown may be ganged to a similar filter in the radiofrequency amplifier.
GB246340A 1940-02-08 1940-02-08 Improvements relating to electron discharge tubes Expired GB535277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB246340A GB535277A (en) 1940-02-08 1940-02-08 Improvements relating to electron discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB246340A GB535277A (en) 1940-02-08 1940-02-08 Improvements relating to electron discharge tubes

Publications (1)

Publication Number Publication Date
GB535277A true GB535277A (en) 1941-04-03

Family

ID=9740008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB246340A Expired GB535277A (en) 1940-02-08 1940-02-08 Improvements relating to electron discharge tubes

Country Status (1)

Country Link
GB (1) GB535277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037600B (en) * 1955-05-20 1958-08-28 Egyesuelt Izzolampa Electron tubes for amplifying voltages of very high frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037600B (en) * 1955-05-20 1958-08-28 Egyesuelt Izzolampa Electron tubes for amplifying voltages of very high frequency

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