GB461807A - Improvements in or relating to signalling systems using very short waves and to vacuum tubes therefor - Google Patents

Improvements in or relating to signalling systems using very short waves and to vacuum tubes therefor

Info

Publication number
GB461807A
GB461807A GB29552/36A GB2955236A GB461807A GB 461807 A GB461807 A GB 461807A GB 29552/36 A GB29552/36 A GB 29552/36A GB 2955236 A GB2955236 A GB 2955236A GB 461807 A GB461807 A GB 461807A
Authority
GB
United Kingdom
Prior art keywords
circuit
frequency
electrode
relating
coupled
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
GB29552/36A
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
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB461807A publication Critical patent/GB461807A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H03D9/065—Transference of modulation using distributed inductance and capacitance by means of discharge tubes having more than two electrodes

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

461,807. Valves and valve circuits. STANDARD TELEPHONES & CABLES, Ltd. Oct. 25, 1935, No. 29552/36. Convention date, Nov. 24, 1934. Divided out of 461,763. [Classes 39 (i) and 40 (v)] A short-wave valve comprises an axial cathode 1, surrounded by a continuous " oscillating electrode " or grid connected at each end to a high-frequency circuit, and a reflecting electrode in the form of two cylinders 4, 4<1>. The latter are connected to an oscillatory lecher-wire circuit (11) which is coupled through condensers 23, 24 to a concentric transmission line 20, 21 feeding a dipole aerial 18, 19. A coupling member 22 may also serve as a screen or reflector for the aerial. The electrode 3 is coupled to the high-frequency circuit (1) which oscillates at a frequency different from the circuit (11). For supersonic reception, the resulting beat frequency is collected in a circuit 25 and fed forward for further amplification. The arrangement may also be used as a modulator as described in Specification 461,763. Specification 344,448 also is referred to.
GB29552/36A 1934-11-24 1935-10-25 Improvements in or relating to signalling systems using very short waves and to vacuum tubes therefor Expired GB461807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR461807X 1934-11-24

Publications (1)

Publication Number Publication Date
GB461807A true GB461807A (en) 1937-02-24

Family

ID=8901782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29552/36A Expired GB461807A (en) 1934-11-24 1935-10-25 Improvements in or relating to signalling systems using very short waves and to vacuum tubes therefor

Country Status (1)

Country Link
GB (1) GB461807A (en)

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