GB843432A - Improvements in or relating to radio broadcast receivers - Google Patents

Improvements in or relating to radio broadcast receivers

Info

Publication number
GB843432A
GB843432A GB808356A GB808356A GB843432A GB 843432 A GB843432 A GB 843432A GB 808356 A GB808356 A GB 808356A GB 808356 A GB808356 A GB 808356A GB 843432 A GB843432 A GB 843432A
Authority
GB
United Kingdom
Prior art keywords
condensers
relating
diagonal
march
radio broadcast
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
GB808356A
Inventor
Roy Victor Browning
David Albert Green
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.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes 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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Priority to GB808356A priority Critical patent/GB843432A/en
Publication of GB843432A publication Critical patent/GB843432A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

843,432. Superheterodyne receivers; frequency-changing circuits. KOLSTERBRANDES Ltd. March 8, 1957 [March 15, 1956], No. 8083/56. Classes 40(5) and 40(6). The input circuit of a triode self-oscillating frequency-changer comprises a balanced capacitor bridge, formed by condensers 16, 26 and the ganged tuning condensers 24, 25. The signal input is applied across one diagonal of the bridge, from inductance 15, while the oscillator coil 23 is connected across the other diagonal: oscillations are generated by back-coupling from the anode circuit via the tuned I.F. circuit 21 and blocking condenser 22. Condensers 27, and/or 28 may be provided for the purposes of tracking. Resistor 29 may be adjusted to give I.F. regeneration. Reference has been directed by the Comptroller to Specification 762,743.
GB808356A 1956-03-15 1956-03-15 Improvements in or relating to radio broadcast receivers Expired GB843432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB808356A GB843432A (en) 1956-03-15 1956-03-15 Improvements in or relating to radio broadcast receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB808356A GB843432A (en) 1956-03-15 1956-03-15 Improvements in or relating to radio broadcast receivers

Publications (1)

Publication Number Publication Date
GB843432A true GB843432A (en) 1960-08-04

Family

ID=9845424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB808356A Expired GB843432A (en) 1956-03-15 1956-03-15 Improvements in or relating to radio broadcast receivers

Country Status (1)

Country Link
GB (1) GB843432A (en)

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