GB611989A - Improvements in or relating to radio receivers - Google Patents

Improvements in or relating to radio receivers

Info

Publication number
GB611989A
GB611989A GB1700046A GB1700046A GB611989A GB 611989 A GB611989 A GB 611989A GB 1700046 A GB1700046 A GB 1700046A GB 1700046 A GB1700046 A GB 1700046A GB 611989 A GB611989 A GB 611989A
Authority
GB
United Kingdom
Prior art keywords
cathode
diode
resistor
voltage
bias
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
GB1700046A
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.)
P R T LAB Ltd
PAUL ADALBERT FELDMANN
Original Assignee
P R T LAB Ltd
PAUL ADALBERT FELDMANN
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 P R T LAB Ltd, PAUL ADALBERT FELDMANN filed Critical P R T LAB Ltd
Priority to GB1700046A priority Critical patent/GB611989A/en
Publication of GB611989A publication Critical patent/GB611989A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/004—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general using discharge tubes

Landscapes

  • Picture Signal Circuits (AREA)

Abstract

611,989. Radio receiving circuits. P.R.T. LABORATORIES, Ltd., and FELDMANN, P. A. June 4, 1946, No. 17000. [Class 40 (v)] A voltage derived from an interference signal at -the post-detector stage of a receiver suppresses a pre-detector stage valve during the time of the interference. In the television receiver described, the output of an R.F. or I.F. amplifier V1 is demodulated by the diode D1, the video-frequency output being amplified by V3 and fed both to the output terminal t3 and to the cathode of diode D2. This cathode also has an adjustable positive bias tapped off bias resistor 8; and the anode is connected to the suppressor grid g3 of V1, which grid is earthed through a resistor 7. A signal applied to the cathode of D2 of amplitude sufficient to overcome the bias voltage, causes the diode to conduct; the resulting current through resistor 7 reduces the voltage on g3 so that V1 cuts off, during the occurrence of the interference signal.
GB1700046A 1946-06-04 1946-06-04 Improvements in or relating to radio receivers Expired GB611989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1700046A GB611989A (en) 1946-06-04 1946-06-04 Improvements in or relating to radio receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1700046A GB611989A (en) 1946-06-04 1946-06-04 Improvements in or relating to radio receivers

Publications (1)

Publication Number Publication Date
GB611989A true GB611989A (en) 1948-11-05

Family

ID=10087432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1700046A Expired GB611989A (en) 1946-06-04 1946-06-04 Improvements in or relating to radio receivers

Country Status (1)

Country Link
GB (1) GB611989A (en)

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