GB596310A - Improvements in or relating to electron discharge devices and cathode ray oscillograph time base circuits associated therewith - Google Patents

Improvements in or relating to electron discharge devices and cathode ray oscillograph time base circuits associated therewith

Info

Publication number
GB596310A
GB596310A GB179745A GB179745A GB596310A GB 596310 A GB596310 A GB 596310A GB 179745 A GB179745 A GB 179745A GB 179745 A GB179745 A GB 179745A GB 596310 A GB596310 A GB 596310A
Authority
GB
United Kingdom
Prior art keywords
anode
cathode
anodes
sections
circuit
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
GB179745A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Filing date
Publication date
Priority to BE472527D priority Critical patent/BE472527A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to FR927286D priority patent/FR927286A/en
Priority to CH261497D priority patent/CH261497A/en
Priority to ES0176099A priority patent/ES176099A1/en
Publication of GB596310A publication Critical patent/GB596310A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/86—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements gas-filled tubes or spark-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • H03K4/20—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor using a tube with negative feedback by capacitor, e.g. Miller integrator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/39—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier
    • H03K4/41—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier with negative feedback through a capacitor, e.g. Miller-integrator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/003—Tubes with plural electrode systems

Abstract

596,310. Thermionic valves; sawtooth generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and ROGERS, D. C. Jan. 23, 1945, No. 1797. [Classes 39 (i) and 40 (v)] A thermionic valve comprises two pentode valve sections having separate unequal anodes 6, 7, Fig. 1, but the control grid 3, screen grid 4 and suppressor grid 5 being common to the two sections and interposed between the cathode 2 and the anodes 6, 7 and the electron collecting areas of the anodes 6, 7 are so proportioned that the anode currents and mutual conductances of the two sections are in a specified constant ratio while the control grid potential is varied over a specified range. Preferably, the currents collected by the anodes 7, 6 are in the ratio of 10 : 1 respectively. The cathode 2 may be in the form of a hollow metal cylinder containing a heater and is then surrounded by cylindrical wire-wound grids 3, 4, 5 and by a hollow anode cylinder which is divided into two unequal parts by a cut transverse to the axis, Figs. 3, 4 (not shown), an annular metal screen 8 being interposed between the two anode parts 6, 7 and electrically connected to the cathode 2. A " diode anode " 9 may be placed near the cathode 2 and connected to the suppressor grid 5. The valve may be used in a circuit for generating saw-tooth waves, as shown ; the circuit does not oscillate spontaneously, but has to be triggered by applying pulses of rectangular waveform between the terminals 18, 20. The current in the circuit connected to the smaller anode 6 is consequently of saw-tooth waveform and an amplified copy of this waveform is produced in the circuit connected to the larger anode 7, and may be applied to the deflecting coils 16 of a cathode-ray tube through an output transformer 15.
GB179745A 1945-01-23 1945-01-23 Improvements in or relating to electron discharge devices and cathode ray oscillograph time base circuits associated therewith Expired GB596310A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE472527D BE472527A (en) 1945-01-23
FR927286D FR927286A (en) 1945-01-23 1946-05-23 Improvements to time base circuits
CH261497D CH261497A (en) 1945-01-23 1946-07-30 Electron tube.
ES0176099A ES176099A1 (en) 1945-01-23 1946-12-14 IMPROVEMENTS IN RELATING TO TIME BASE CIRCUITS FOR CATHODIC RAY OSCILOGRAPHERS

Publications (1)

Publication Number Publication Date
GB596310A true GB596310A (en) 1948-01-01

Family

ID=1626989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB179745A Expired GB596310A (en) 1945-01-23 1945-01-23 Improvements in or relating to electron discharge devices and cathode ray oscillograph time base circuits associated therewith

Country Status (1)

Country Link
GB (1) GB596310A (en)

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