GB493757A - Improvements in superheterodyne receivers for short-wave reception - Google Patents

Improvements in superheterodyne receivers for short-wave reception

Info

Publication number
GB493757A
GB493757A GB17413/38A GB1741338A GB493757A GB 493757 A GB493757 A GB 493757A GB 17413/38 A GB17413/38 A GB 17413/38A GB 1741338 A GB1741338 A GB 1741338A GB 493757 A GB493757 A GB 493757A
Authority
GB
United Kingdom
Prior art keywords
resistance
condenser
reception
grids
wave
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
GB17413/38A
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.)
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 GB493757A publication Critical patent/GB493757A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
GB17413/38A 1937-06-14 1938-06-11 Improvements in superheterodyne receivers for short-wave reception Expired GB493757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE207280X 1937-06-14

Publications (1)

Publication Number Publication Date
GB493757A true GB493757A (en) 1938-10-13

Family

ID=5793634

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17413/38A Expired GB493757A (en) 1937-06-14 1938-06-11 Improvements in superheterodyne receivers for short-wave reception

Country Status (5)

Country Link
BE (1) BE428571A (OSRAM)
CH (1) CH207280A (OSRAM)
FR (1) FR839258A (OSRAM)
GB (1) GB493757A (OSRAM)
NL (1) NL51350C (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784308A (en) * 1951-10-13 1957-03-05 Hartford Nat Bank & Trust Co Two band converter stage with signal grid bias stabilizing means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784308A (en) * 1951-10-13 1957-03-05 Hartford Nat Bank & Trust Co Two band converter stage with signal grid bias stabilizing means

Also Published As

Publication number Publication date
CH207280A (de) 1939-10-15
FR839258A (fr) 1939-03-30
BE428571A (OSRAM)
NL51350C (OSRAM)

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