GB632168A - Improvements in or relating to electrical circuits and electronic tubes employed therein - Google Patents

Improvements in or relating to electrical circuits and electronic tubes employed therein

Info

Publication number
GB632168A
GB632168A GB28409/46A GB2840946A GB632168A GB 632168 A GB632168 A GB 632168A GB 28409/46 A GB28409/46 A GB 28409/46A GB 2840946 A GB2840946 A GB 2840946A GB 632168 A GB632168 A GB 632168A
Authority
GB
United Kingdom
Prior art keywords
tubes
positive
grids
anode
ignited
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
GB28409/46A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB632168A publication Critical patent/GB632168A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/52—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of gas-filled tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/18—Time-division multiplex systems using frequency compression and subsequent expansion of the individual signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/10—Distributors
    • H04L13/12—Non-mechanical distributors, e.g. relay distributors
    • H04L13/14—Electronic distributors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/45—Transmitting circuits; Receiving circuits using electronic distributors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • H04L5/245—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters with a number of discharge tubes or semiconductor elements which successively connect the different channels to the transmission channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/39—Signalling arrangements; Manipulation of signalling currents using coded pulse groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Amplifiers (AREA)
  • Particle Accelerators (AREA)

Abstract

632,168. Thermionic valves. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 23, 1946, No. 28409. Convention date, Nov. 27, 1945. [Class 39 (i)] [Also in Group XL (b)] In a gaseous discharge device in which the discharge is triggered by applying a positive potential to the control grid 12, Fig. 1, the cathode 11, control grid 12 and anode 10 being enclosed.in a box-like shield grid 13 having a window 15 for passage of the electrons, a rod-shaped auxiliary anode 16 is inserted between the control grid 12 and anode 10 ; the auxiliary anode is connected to a resistance 28, Fig. 2, and a normally open switch R1a is provided for connecting the main anode 10 through a relay coil M<1> ... M<6> to the positive end of the voltage source. A plurality, e.g. six (as shown) of these discharge devices G<1>-G<6> may be utilized in the circuit arrangement of Fig. 2, which acts as a distributer. Initially the tubes G<1>-G<6> are all biassed below cut-off by negative voltages applied to their control grids, the shield grids being positively biassed; an input signal of the form shown in Fig. 3 is applied across the resistance 25 and at the points 1, 3, 6 (Fig. 3) the shield grids will be driven so negative that none of the tubes G<1>-G<6> will ignite, even with a positive potential on their control grids, whereas at the signal peaks 2, 4, 5 there is no potential drop across the resistance 25 due to the signal, and the tubes G<1>-G<6> can be ignited by biassing their control grids positively. Positive pulses are applied to the control grids in succession from a sweep circuit arrangement comprising vacuum tubes V<0> ... V<7>, energized by the input signal, and each tube G<1> ... G<6> ignites or fails to ignite according to whether the shield grid potential is positive or negative due to the input signal shown in Fig. 3. Thus for the signal shown in Fig. 3, tubes G<1>, G<3>, G' are not ignited and tubes G<2>, G<4>, G<5> are ignited. The arcs of the ignited tubes extend initially between the cathodes and auxiliary anodes, but at the time the control grid of the tube G<6> is made positive a voltage wave from transformer T<5> ignites gas discharge tube G' and energizes relay R<1>, so closing contact R1a; as a result, relay R2 is energized and contact R2a is opened; this has the effect of transferring the arc from the auxiliary anodes of the tubes G<1>-G<6> to their main anodes. Means are also described for restoring the circuit to its original starting condition. Specification 632,165, [Group XL (b)], is referred to.
GB28409/46A 1945-11-27 1946-09-23 Improvements in or relating to electrical circuits and electronic tubes employed therein Expired GB632168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US631095A US2484084A (en) 1945-11-27 1945-11-27 Gaseous tube and circuit

Publications (1)

Publication Number Publication Date
GB632168A true GB632168A (en) 1949-11-17

Family

ID=24529742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28409/46A Expired GB632168A (en) 1945-11-27 1946-09-23 Improvements in or relating to electrical circuits and electronic tubes employed therein

Country Status (4)

Country Link
US (1) US2484084A (en)
FR (1) FR935106A (en)
GB (1) GB632168A (en)
NL (1) NL68922C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021450A (en) * 1960-04-07 1962-02-13 Thompson Ramo Wooldridge Inc Ring counter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586151A (en) * 1948-02-26 1952-02-19 Rca Corp Electronic switching

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746670A (en) * 1920-04-29 1930-02-11 Cutler Hammer Inc Regulator
US1731687A (en) * 1923-10-15 1929-10-15 Westinghouse Electric & Mfg Co Mercury-arc tube with grid control
US2060506A (en) * 1932-07-30 1936-11-10 Westinghouse Electric & Mfg Co Electric discharge device
US2099065A (en) * 1935-03-15 1937-11-16 American Telephone & Telegraph Distributor device
US2134577A (en) * 1936-07-23 1938-10-25 Siemens Ag Electrode system
US2188159A (en) * 1937-05-21 1940-01-23 Bell Telephone Labor Inc Gas-filled space discharge tube circuits
US2210574A (en) * 1938-09-16 1940-08-06 Ibm Signaling system
NL87334C (en) * 1938-10-03
US2332977A (en) * 1941-07-31 1943-10-26 Bell Telephone Labor Inc Space discharge device and circuits
US2329792A (en) * 1941-10-23 1943-09-21 Bell Telephone Labor Inc Electron discharge device circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021450A (en) * 1960-04-07 1962-02-13 Thompson Ramo Wooldridge Inc Ring counter

Also Published As

Publication number Publication date
US2484084A (en) 1949-10-11
NL68922C (en)
FR935106A (en) 1948-06-10

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