GB415962A - Improvements in radio receiving sets - Google Patents

Improvements in radio receiving sets

Info

Publication number
GB415962A
GB415962A GB7293/34A GB729334A GB415962A GB 415962 A GB415962 A GB 415962A GB 7293/34 A GB7293/34 A GB 7293/34A GB 729334 A GB729334 A GB 729334A GB 415962 A GB415962 A GB 415962A
Authority
GB
United Kingdom
Prior art keywords
radio receiving
bias
wave
resistance
change switch
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
GB7293/34A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB415962A publication Critical patent/GB415962A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges

Landscapes

  • Circuits Of Receivers In General (AREA)

Abstract

415,962. Wireless receiving-apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 7, 1934, No. 7293. Convention date, April 29, 1933. [Class 40 (v).] The wave-change switch of a wireless receiver is mechanically coupled with a device for modifying the bias and therefore the amplification of at least one of the valves. The valve is biassed by the potential drop in resistance 11 which is in series with resistances 12, 13 across the potentiometer 17. On closing the wave-change switch 14, 15, the resistance 12 is short-circuited and the bias is increased.
GB7293/34A 1933-04-29 1934-03-07 Improvements in radio receiving sets Expired GB415962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL415962X 1933-04-29

Publications (1)

Publication Number Publication Date
GB415962A true GB415962A (en) 1934-09-06

Family

ID=19786016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7293/34A Expired GB415962A (en) 1933-04-29 1934-03-07 Improvements in radio receiving sets

Country Status (1)

Country Link
GB (1) GB415962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251995A (en) * 1990-11-15 1992-07-22 Thomson Consumer Electronics Audio level equalisation of broadcast fm and narrow frequency deviation fm radio signals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251995A (en) * 1990-11-15 1992-07-22 Thomson Consumer Electronics Audio level equalisation of broadcast fm and narrow frequency deviation fm radio signals
US5361406A (en) * 1990-11-15 1994-11-01 Thomson Consumer Electronics, Inc. Audio level equalization of broadcast and national weather service FM radio signals
GB2251995B (en) * 1990-11-15 1994-11-02 Thomson Consumer Electronics Audio level equalization of broadcast FM and narrow frequency deviation FM radio signals

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