GB540218A - Improvements in electronic relay circuit arrangements - Google Patents

Improvements in electronic relay circuit arrangements

Info

Publication number
GB540218A
GB540218A GB605340A GB605340A GB540218A GB 540218 A GB540218 A GB 540218A GB 605340 A GB605340 A GB 605340A GB 605340 A GB605340 A GB 605340A GB 540218 A GB540218 A GB 540218A
Authority
GB
United Kingdom
Prior art keywords
valve
grid
anode
condenser
resistance
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
GB605340A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB605340A priority Critical patent/GB540218A/en
Publication of GB540218A publication Critical patent/GB540218A/en
Priority to FR947429D priority patent/FR947429A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

540,218. Wireless signalling; valve relays. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., DAVIS, N. E., CLOUGH, N. H., and BOUNDS, L. April 3, 1940, No. 6053. [Class 40 (v)] Relates to keying or switching circuits using gas-filled valves. In order to de-energize the valve, a condenser, charged during the period when the valve is conductive, is so arranged as to reduce the anode potential simultaneously with, or shortly after, the reduction of potential on the grid. When the key S 1 , S 2 is in its "on" position (as shown), the condenser C is connected across the anode resistance R 1 , and the grid of valve V 1 is connected to the positive terminal of the bias battery. When the key is moved to its " off " position, the grid is connected over resistances R 3 , R 4 to negative, and the positively charged side of the condenser C is connected to the cathode, thereby extinguishing the valve. In a modification, Figs. 2 to 6 (not shown), two gas-filled valves are used and the condenser C connected to the anode of each valve, the key in one position making the grid of one valve positive and of the other negative, this condition being reversed in the other position. Keying voltages may be taken across the anode resistances or the valves; the anode resistance may serve as the normal grid resistance of an amplifier, Fig. 3 (not shown), or, when the circuit is used in an early low-voltage low-current stage, the anode resistance may serve as the anode resistance of the amplifier, Fig. 4 (not shown), or the anode of one gas-filled valve may be connected direct to the screen-grid of a multi-grid valve, Fig. 6 (not shown).
GB605340A 1940-04-03 1940-04-03 Improvements in electronic relay circuit arrangements Expired GB540218A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB605340A GB540218A (en) 1940-04-03 1940-04-03 Improvements in electronic relay circuit arrangements
FR947429D FR947429A (en) 1940-04-03 1947-05-31 Improvements to electronic relay assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB605340A GB540218A (en) 1940-04-03 1940-04-03 Improvements in electronic relay circuit arrangements

Publications (1)

Publication Number Publication Date
GB540218A true GB540218A (en) 1941-10-09

Family

ID=9807554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB605340A Expired GB540218A (en) 1940-04-03 1940-04-03 Improvements in electronic relay circuit arrangements

Country Status (2)

Country Link
FR (1) FR947429A (en)
GB (1) GB540218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476978A (en) * 1944-02-03 1949-07-26 Int Standard Electric Corp Time base circuit for cathode-ray tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476978A (en) * 1944-02-03 1949-07-26 Int Standard Electric Corp Time base circuit for cathode-ray tubes

Also Published As

Publication number Publication date
FR947429A (en) 1949-07-01

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