GB1373724A - Radio receivers - Google Patents

Radio receivers

Info

Publication number
GB1373724A
GB1373724A GB3520972A GB3520972A GB1373724A GB 1373724 A GB1373724 A GB 1373724A GB 3520972 A GB3520972 A GB 3520972A GB 3520972 A GB3520972 A GB 3520972A GB 1373724 A GB1373724 A GB 1373724A
Authority
GB
United Kingdom
Prior art keywords
radio
voltage
supply
transistor
declining
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
GB3520972A
Other languages
English (en)
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.)
Maxar Space LLC
Original Assignee
Philco Ford Corp
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 Philco Ford Corp filed Critical Philco Ford Corp
Publication of GB1373724A publication Critical patent/GB1373724A/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
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes

Landscapes

  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
GB3520972A 1971-07-27 1972-07-27 Radio receivers Expired GB1373724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16651671A 1971-07-27 1971-07-27

Publications (1)

Publication Number Publication Date
GB1373724A true GB1373724A (en) 1974-11-13

Family

ID=22603646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3520972A Expired GB1373724A (en) 1971-07-27 1972-07-27 Radio receivers

Country Status (8)

Country Link
US (1) US3761823A (enrdf_load_stackoverflow)
JP (1) JPS5512775B1 (enrdf_load_stackoverflow)
AR (1) AR193882A1 (enrdf_load_stackoverflow)
BR (1) BR7204968D0 (enrdf_load_stackoverflow)
CA (1) CA954591A (enrdf_load_stackoverflow)
DE (1) DE2236713A1 (enrdf_load_stackoverflow)
GB (1) GB1373724A (enrdf_load_stackoverflow)
IT (1) IT961719B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063175A (en) * 1976-08-05 1977-12-13 Friedman Eliot I Amplifier for receive mode operation
US4065723A (en) * 1976-08-16 1977-12-27 General Motors Corporation Tuned radio frequency amplifier with back to back varactor diodes connected through a common cathode lead
FR2567325B1 (fr) * 1984-07-03 1986-11-14 Thomson Csf Element a capacite variable, commandable par une tension continue
JPS61208524A (ja) * 1985-03-13 1986-09-16 Aisin Seiki Co Ltd 電子機器の安全装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324424A (en) * 1939-10-28 1943-07-13 Pollack Paul Battery protection and indicating system
US2617019A (en) * 1946-07-17 1952-11-04 Hartford Nat Bank & Trust Co Silencing network
US2678391A (en) * 1952-07-02 1954-05-11 Rca Corp Protective circuit
US3189830A (en) * 1961-05-08 1965-06-15 Gen Motors Corp Automatic frequency control with compensation for variable supply voltage
US3440544A (en) * 1966-11-01 1969-04-22 Motorola Inc Manual,automatic,and semiautomatic tuning circuits utilizing voltage variable capacitance diodes
US3445746A (en) * 1966-11-10 1969-05-20 Camco Inc Battery low voltage cutoff and regulator
US3588856A (en) * 1968-07-17 1971-06-28 Gen Electric Failure warning system
US3521204A (en) * 1969-01-03 1970-07-21 Motorola Inc Electronically tuned pushbutton radio having station selecting comparison means

Also Published As

Publication number Publication date
BR7204968D0 (pt) 1973-05-10
JPS5512775B1 (enrdf_load_stackoverflow) 1980-04-04
IT961719B (it) 1973-12-10
AR193882A1 (es) 1973-05-31
CA954591A (en) 1974-09-10
US3761823A (en) 1973-09-25
DE2236713A1 (de) 1973-02-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee