GB232159A - Improvements in and relating to thermionic tubes - Google Patents

Improvements in and relating to thermionic tubes

Info

Publication number
GB232159A
GB232159A GB22189/24A GB2218924A GB232159A GB 232159 A GB232159 A GB 232159A GB 22189/24 A GB22189/24 A GB 22189/24A GB 2218924 A GB2218924 A GB 2218924A GB 232159 A GB232159 A GB 232159A
Authority
GB
United Kingdom
Prior art keywords
anode
filament
control electrode
grid
electrode
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
GB22189/24A
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.)
Dr Erich F Huth GmbH
Original Assignee
Dr Erich F Huth GmbH
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 Dr Erich F Huth GmbH filed Critical Dr Erich F Huth GmbH
Publication of GB232159A publication Critical patent/GB232159A/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

Landscapes

  • X-Ray Techniques (AREA)

Abstract

232,159. Huth Ges., Dr. E. F. April 11, 1924, [Convention date]. Vacuum tubes.-In a thermionic valve in which the control electrode is not arranged between the filament and anode, the surface of the control electrode is reduced at the part to which electrons pass from the filament and the total surface of the electrode is made larger than that of the anode. The control electrode may be in the form of a grid or of a plate with one or more slits extending wholly or partly through it. As shown, the filament 1 is mounted in a slit between two parts 3<a>, 3<b> of the control electrode, which are connected together electrically, and have a combined surface greater than that of the anode 2; the filament may be mounted slightly nearer to the anode than as shown. Curves are given to show the relation between the distance of the filament from the anode and (1) the " grid permeability," and (2) the ratio of the steepness of the characteristic to the " grid permeability." With an anode voltage of 40 to 50, a positive potential of 2 to 3 volts must be applied to the control electrode before current passes to it.
GB22189/24A 1924-04-11 1924-09-19 Improvements in and relating to thermionic tubes Expired GB232159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE232159X 1924-04-11

Publications (1)

Publication Number Publication Date
GB232159A true GB232159A (en) 1925-10-08

Family

ID=5879562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22189/24A Expired GB232159A (en) 1924-04-11 1924-09-19 Improvements in and relating to thermionic tubes

Country Status (1)

Country Link
GB (1) GB232159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2172949A1 (en) * 1972-02-24 1973-10-05 Picker Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2172949A1 (en) * 1972-02-24 1973-10-05 Picker Corp

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