FR668535A - Frequency changer device, in particular for radio signaling - Google Patents

Frequency changer device, in particular for radio signaling

Info

Publication number
FR668535A
FR668535A FR668535DA FR668535A FR 668535 A FR668535 A FR 668535A FR 668535D A FR668535D A FR 668535DA FR 668535 A FR668535 A FR 668535A
Authority
FR
France
Prior art keywords
frequency changer
changer device
radio signaling
signaling
radio
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
Other languages
French (fr)
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.)
DUCRETET SOC D Ets
Original Assignee
DUCRETET SOC D Ets
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 DUCRETET SOC D Ets filed Critical DUCRETET SOC D Ets
Application granted granted Critical
Publication of FR668535A publication Critical patent/FR668535A/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)
FR668535D 1928-05-08 1928-05-08 Frequency changer device, in particular for radio signaling Expired FR668535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR668535T 1928-05-08

Publications (1)

Publication Number Publication Date
FR668535A true FR668535A (en) 1929-11-04

Family

ID=9015110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668535D Expired FR668535A (en) 1928-05-08 1928-05-08 Frequency changer device, in particular for radio signaling

Country Status (1)

Country Link
FR (1) FR668535A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755065C (en) * 1933-01-31 1953-04-09 Rca Corp Self-oscillating mixing tube circuit
DE757376C (en) * 1933-03-28 1953-04-16 Rca Corp Overlay receiving circuit using a self-oscillating mixing tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755065C (en) * 1933-01-31 1953-04-09 Rca Corp Self-oscillating mixing tube circuit
DE757376C (en) * 1933-03-28 1953-04-16 Rca Corp Overlay receiving circuit using a self-oscillating mixing tube

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