GB427901A - Improvements in and relating to television and the like transmission systems - Google Patents

Improvements in and relating to television and the like transmission systems

Info

Publication number
GB427901A
GB427901A GB3062533A GB3062533A GB427901A GB 427901 A GB427901 A GB 427901A GB 3062533 A GB3062533 A GB 3062533A GB 3062533 A GB3062533 A GB 3062533A GB 427901 A GB427901 A GB 427901A
Authority
GB
United Kingdom
Prior art keywords
valve
resistance
output circuit
value
york
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
GB3062533A
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB3062533A priority Critical patent/GB427901A/en
Publication of GB427901A publication Critical patent/GB427901A/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
    • H03K4/10—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
    • H03K4/43—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 combined with means for generating the driving pulses

Landscapes

  • Microwave Tubes (AREA)
  • Feedback Control In General (AREA)

Abstract

427,901. Thermionic valve circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, and PERCIVAL, W. S., 6, York Mansions, York Avenue, Hanwell, both in Middlesex. Nov. 3, 1933, No. 30625. Addition to 401,990. [Class 40 (v)] A valve 4 supplying saw-tooth waves to an output circuit has a resistance 12, 13 producing negative feed-back and of such value, and so connected, that the time period of the output circuit is substantially inversely proportional to the magnitude of the feed-back resistance. The product of the amplification factor of the valve and the value of the feedback resistance is much greater than the internal resistance of the valve. The resistance is in series with a scanning-coil 11 of a cathoderay tube in the anode circuit of the valve, and the end of the resistance remote from the cathode of the valve is connected to the controlling-grid of the valve. Specification 424,221 is referred to.
GB3062533A 1933-11-03 1933-11-03 Improvements in and relating to television and the like transmission systems Expired GB427901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3062533A GB427901A (en) 1933-11-03 1933-11-03 Improvements in and relating to television and the like transmission systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3062533A GB427901A (en) 1933-11-03 1933-11-03 Improvements in and relating to television and the like transmission systems

Publications (1)

Publication Number Publication Date
GB427901A true GB427901A (en) 1935-05-02

Family

ID=10310571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3062533A Expired GB427901A (en) 1933-11-03 1933-11-03 Improvements in and relating to television and the like transmission systems

Country Status (1)

Country Link
GB (1) GB427901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946557C (en) * 1950-06-25 1956-08-02 Lorenz C Ag Circuit arrangement for generating saw tooth-shaped pulses
DE755231C (en) * 1936-08-10 1958-04-24 Fernseh Gmbh Arrangement for generating time-proportional deflection currents
DE973547C (en) * 1936-04-29 1960-03-24 Emi Ltd Circuit arrangement for generating saegezahnfoermiger currents

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973547C (en) * 1936-04-29 1960-03-24 Emi Ltd Circuit arrangement for generating saegezahnfoermiger currents
DE755231C (en) * 1936-08-10 1958-04-24 Fernseh Gmbh Arrangement for generating time-proportional deflection currents
DE946557C (en) * 1950-06-25 1956-08-02 Lorenz C Ag Circuit arrangement for generating saw tooth-shaped pulses

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