GB542147A - Improvements in or relating to super-regenerative receivers - Google Patents

Improvements in or relating to super-regenerative receivers

Info

Publication number
GB542147A
GB542147A GB10860/40A GB1086040A GB542147A GB 542147 A GB542147 A GB 542147A GB 10860/40 A GB10860/40 A GB 10860/40A GB 1086040 A GB1086040 A GB 1086040A GB 542147 A GB542147 A GB 542147A
Authority
GB
United Kingdom
Prior art keywords
detector
distortion
super
amplifier
relating
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
GB10860/40A
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
Priority to BE476536D priority Critical patent/BE476536A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB10860/40A priority patent/GB542147A/en
Priority to US396814A priority patent/US2317474A/en
Publication of GB542147A publication Critical patent/GB542147A/en
Priority to ES0177222A priority patent/ES177222A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D11/00—Super-regenerative demodulator circuits
    • H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Abstract

542,147. Valve circuits for wireless reception. STANDARD TELEPHONES & CABLES, Ltd., and MONTGOMERY, W. A. June 25, 1940, No. 10860. [Class 40 (v)] In a super-regenerative receiver the quench frequency is made sufficiently low for the detector oscillation to build up to saturation value so that the detector has a logarithmic characteristic and the following low frequency amplifier has an exponential characteristic so as to compensate for the distortion. The Figure shows a triode detector V1 resistance capacity coupled to an amplifier V2 the grid bias of which is critically adjusted by potentiometer R5, R6, R7. The Specification gives a mathematical analysis to show that harmonic distortion is eliminated and that a small amount of amplitude distortion of the nature of volume expansion remains which is negligible for modulation below 70 per cent.
GB10860/40A 1940-06-25 1940-06-25 Improvements in or relating to super-regenerative receivers Expired GB542147A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE476536D BE476536A (en) 1940-06-25
GB10860/40A GB542147A (en) 1940-06-25 1940-06-25 Improvements in or relating to super-regenerative receivers
US396814A US2317474A (en) 1940-06-25 1941-06-06 Superregenerative receiver
ES0177222A ES177222A1 (en) 1940-06-25 1947-03-13 IMPROVEMENTS IN OR RELATING TO SUPER.REGENERATIVE RECEIVERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10860/40A GB542147A (en) 1940-06-25 1940-06-25 Improvements in or relating to super-regenerative receivers

Publications (1)

Publication Number Publication Date
GB542147A true GB542147A (en) 1941-12-29

Family

ID=9975650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10860/40A Expired GB542147A (en) 1940-06-25 1940-06-25 Improvements in or relating to super-regenerative receivers

Country Status (4)

Country Link
US (1) US2317474A (en)
BE (1) BE476536A (en)
ES (1) ES177222A1 (en)
GB (1) GB542147A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513968A (en) * 1947-11-04 1950-07-04 Philco Corp Superregenerator

Also Published As

Publication number Publication date
US2317474A (en) 1943-04-27
ES177222A1 (en) 1947-04-16
BE476536A (en)

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