GB450962A - Improvements in and relating to electron discharge tubes - Google Patents

Improvements in and relating to electron discharge tubes

Info

Publication number
GB450962A
GB450962A GB33881/34A GB3388134A GB450962A GB 450962 A GB450962 A GB 450962A GB 33881/34 A GB33881/34 A GB 33881/34A GB 3388134 A GB3388134 A GB 3388134A GB 450962 A GB450962 A GB 450962A
Authority
GB
United Kingdom
Prior art keywords
anodes
electrodes
anode
cathode
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
GB33881/34A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta 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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB450962A publication Critical patent/GB450962A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B13/00—Generation of oscillations using deflection of electron beam in a cathode-ray tube

Abstract

450,962. Cathode-ray tubes and circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Nov. 26, 1934, No. 33881. Convention date, Nov. 27, 1933. Addition to 443,364. [Classes 39 (i) and 40 (v)] In devices with the current to an anode controlled by trans verse deflection of the electron stream as ir the parent Specification, the cathode rays are made parallel without an intersection, before they reach a diaphragm aperture which is electron-op tically reproduced ir the plane of the anode A slit 5<1> in a dia phragm 5 is reproduced in the plane of the anodes 10, 11 by the field 21 between boxshaped electrodes 8, 9, placed beyond the deflecting plates 6, 7. Rays from the cathode 1 are made parallel before reaching the slit 5<1> by a preliminary concentrating system of two box-shaped electrodes 2, 4 and a diaphragm 3. The electrodes are biassed as shown, and the electrodes 2, 4 are at low potential, preferably connected to the cathode 1. The anodes 10, 11 as well as the electrode 8, may be earthed if the electrode 9 is long to screen the anodes from the field 21, or if a net 9<a>, preferably of coarse mesh and connected to the electrode 9 is placed in front of the anodes. The control potentials 14 are applied to one deflecting plate 6 and a reversed-phase output is obtained from the resistance 19 in the circuit of the anode 10. Increased amplification may be produced by coupling the anode 10 to the other deflecting-plate 7 through a condenser 18 and potentiometer 15 as shown. The degree of back coupling may be so great that the ray has only two stable positions and is thrown from one to the other when the potential 14 exceeds a certain value, a relay dependent on a threshold value being thus obtained. The ray is statically screened by the electrodes. Dimensions and voltages are specified. The Specification as open to inspection under Sect. 91 comprises also anodes with bent outer edges and the circuits described in Specification 451,021. This subject-matter does not appear in the Specification as accepted.
GB33881/34A 1933-07-16 1934-11-26 Improvements in and relating to electron discharge tubes Expired GB450962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE443364X 1933-07-16

Publications (1)

Publication Number Publication Date
GB450962A true GB450962A (en) 1936-07-27

Family

ID=6528779

Family Applications (3)

Application Number Title Priority Date Filing Date
GB21824/34A Expired GB443364A (en) 1933-07-16 1934-07-26 Electronic tube
GB33881/34A Expired GB450962A (en) 1933-07-16 1934-11-26 Improvements in and relating to electron discharge tubes
GB14731/36A Expired GB451021A (en) 1933-07-16 1934-11-26 Improvements in or relating to amplifier circuits

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB21824/34A Expired GB443364A (en) 1933-07-16 1934-07-26 Electronic tube

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB14731/36A Expired GB451021A (en) 1933-07-16 1934-11-26 Improvements in or relating to amplifier circuits

Country Status (3)

Country Link
US (1) US2114613A (en)
FR (2) FR776476A (en)
GB (3) GB443364A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475644A (en) * 1943-08-19 1949-07-12 Nora A Woodin Electron tube
US2505261A (en) * 1947-08-29 1950-04-25 Honeywell Regulator Co Beam type of electron discharge tubes
BE497802A (en) * 1949-09-14
US2806173A (en) * 1951-01-09 1957-09-10 Philco Corp Signal amplitude limiting circuits
US2781468A (en) * 1952-02-18 1957-02-12 Zenith Radio Corp Television receiver
US2834912A (en) * 1954-09-07 1958-05-13 Burroughs Corp Switching methods and structure with multi-output tubes

Also Published As

Publication number Publication date
GB451021A (en) 1936-07-27
FR45478E (en) 1935-09-12
US2114613A (en) 1938-04-19
FR776476A (en) 1934-01-25
GB443364A (en) 1936-02-26

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