GB582129A - Improvements in thermionic valve circuits - Google Patents

Improvements in thermionic valve circuits

Info

Publication number
GB582129A
GB582129A GB1014141A GB1014141A GB582129A GB 582129 A GB582129 A GB 582129A GB 1014141 A GB1014141 A GB 1014141A GB 1014141 A GB1014141 A GB 1014141A GB 582129 A GB582129 A GB 582129A
Authority
GB
United Kingdom
Prior art keywords
cathode
diode
resistance
detector
anode
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
GB1014141A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1014141A priority Critical patent/GB582129A/en
Publication of GB582129A publication Critical patent/GB582129A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/08—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements
    • H03D1/10—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements of diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/32—Automatic scanning over a band of frequencies with simultaneous display of received frequencies, e.g. panoramic receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

582,129. Valve circuits for wireless reception. SCOLES, G. J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 8, 1941, No. 10141. [Class 40 (v)] A detector circuit of the cathode follower or infinite impedance type comprises a triode or screen grid valve with the input applied to the control grid and including a load resistance in the cathode circuit and a limiter diode connected to the cathode through a high resistance and having its cathode positively biassed. The Figure shows a detector V1 having load resistance R, R1 and having its cathode connected through resistance R2 to the anode of a diode V2, the cathode of which is biassed from potentiometer R3, R4. In this way the output taken from the diode anode is limited depending on the.bias applied to the diode, but an output taken from resistance R1 is not affected by the limiting action of the diode V2. The arrangement may constitute the detector in a panoramic radio receiver as described in Specifications 582,125 and 582,126. Specification 474,356 also is referred to.
GB1014141A 1941-09-08 1941-09-08 Improvements in thermionic valve circuits Expired GB582129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1014141A GB582129A (en) 1941-09-08 1941-09-08 Improvements in thermionic valve circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1014141A GB582129A (en) 1941-09-08 1941-09-08 Improvements in thermionic valve circuits

Publications (1)

Publication Number Publication Date
GB582129A true GB582129A (en) 1946-11-06

Family

ID=9962261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1014141A Expired GB582129A (en) 1941-09-08 1941-09-08 Improvements in thermionic valve circuits

Country Status (1)

Country Link
GB (1) GB582129A (en)

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