GB532326A - Improvements in and relating to thermionic valve systems - Google Patents

Improvements in and relating to thermionic valve systems

Info

Publication number
GB532326A
GB532326A GB2109939A GB2109939A GB532326A GB 532326 A GB532326 A GB 532326A GB 2109939 A GB2109939 A GB 2109939A GB 2109939 A GB2109939 A GB 2109939A GB 532326 A GB532326 A GB 532326A
Authority
GB
United Kingdom
Prior art keywords
current
relay
signal
grid
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
GB2109939A
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.)
LESLIE HAROLD PADDIE
Telephone Manufacturing Co Ltd
Original Assignee
LESLIE HAROLD PADDIE
Telephone Manufacturing 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 LESLIE HAROLD PADDIE, Telephone Manufacturing Co Ltd filed Critical LESLIE HAROLD PADDIE
Priority to GB2109939A priority Critical patent/GB532326A/en
Publication of GB532326A publication Critical patent/GB532326A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/08—Amplitude regulation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

532,326. Valve relay circuits. TELEPHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. July 20, 1939, No. 21099. [Class 40 (v)] A differential relay R is operated by D.C. signal impulses applied to the terminals A, B or by A.C. signals applied to transformer 3 and rectified at 4, 5. Valves V1 and V2 are normally non-conductive and conductive respectively. A signal applied to the grid of V1 causes reduction of anode current of V2 which current passes through resistance 15, thus a positive feed-back is given to the grid of V1, and the anode current of V2 builds up very quickly. The decrease of current in relay coil 28 causes an increased voltage across resistance 17 and hence an increased current in the oppositely wound relay coil 29. Reverse action occurs when the signal ceases. Condenser 22 or 22a slightly delays the reverse action of the relay R.
GB2109939A 1939-07-20 1939-07-20 Improvements in and relating to thermionic valve systems Expired GB532326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2109939A GB532326A (en) 1939-07-20 1939-07-20 Improvements in and relating to thermionic valve systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2109939A GB532326A (en) 1939-07-20 1939-07-20 Improvements in and relating to thermionic valve systems

Publications (1)

Publication Number Publication Date
GB532326A true GB532326A (en) 1941-01-22

Family

ID=10157207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2109939A Expired GB532326A (en) 1939-07-20 1939-07-20 Improvements in and relating to thermionic valve systems

Country Status (1)

Country Link
GB (1) GB532326A (en)

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